p (= -log) p (Phosphate; Short Arm of a Chromosome; Pico-‘pitn) P (Phosphorrus; Proline; Pressure) P (Pi) (Phosphate; Inorganic Phosphate) p (pico (10-12) P Value (Probability) P/O Ratio P1 P1 Derived Artificial Chromosome (PAC) P1 Generation P19 P19 Cell (Embryonic Carcinoma Cell Lines) P32 (Phosphorus Isotope) P-450 (Cytochrome P-450) P53 (TP53) Gene (Tumor Suppressor Gene) p53 Protein p53 Tumour Protein P63 (TP63) Gene p63 Protein p660, p730 p680 p-700 P73 (TP73) Gene P73 Protein PA (Phosphatidic Acid) PABA PABP (Poly(A) binding protein) Pacemaker Pachytene Pacinian Receptors Packing Ratio Paedogenesis PAGE (Polyacrylamide Gel Electrophoresis) Painkiller Paired Paired End Reads Paired End Sequencing Paired End Tags (PET; dtags) (Short Sequences at the 5’ and 3’ ends of a DNA Fragments) Pairing Pairing Specificity Rule Pal Palaentology Palaeobiology Palaeobotany Palaeogeneticist Palaeognathae Palaeomagnetism Palaeontology Palaeosciences Palaeozoic Era Paleo- Paleoanthropology Paleoanthropology Paleobotany Paleocene Paleoclimatology Paleoecology Paleoecology Paleogene Period Paleogenetic Paleogenetics Paleogenomics Paleolithic Paleomagnetism Paleontology Paleontology Paleozoic Paleozoic Era Palindrome Palindromic Number Palindromic Sequence Palisade Parenchyma Palladium (Pd) Pallister Killian  Pallor Palm Oil Palmitic Acid Palmitin Palpal Organ Palpation Palynology Palytoxin Palytoxin p-Aminobenzoic Acid (PAPA) Pan- Pan American Centre for Sanitary Engineering and Environmental Sciences Panacea Panacea Pancoast's Syndrome Pancreas Pancreatic Cancer Pancreatic Enzymes Pancreatic Juice Pancreatin Pancreolipase Pancreozymin Pandemic Pandemic Pangenesis Pangenome (Pan Genome) Pan-Genome (Pan Genome) Pangenome Analysis Panic Station Panmictic Population Panmixia (Random Mating, Panmixis) Pantothenate kinase Pantothenate Synthetase Pantothenic Acid (vit. B5) PAP (Poly(A) Polymerase or Poly(A) RNA polymerase) PAP )Pulmonary alveolar proteinosis) PAPA (p-Aminobenzoic Acid) Papain Papain (Papainase) Papaver Papaverine Papaya (Papaw) Paper Chromatography Paper Chromatography Paper Chromatography (2) Paper Factor Papilla (pl. Papillae) Papillate Papilloma Papilloma Virus Papillomaviridae (Viruses) Papillomavirus, Human- (HPV) Papovaviruses Pappy Capsules Papule Para- (Resembling, Near, Beside) Paraben Parabolic Parabolic Flow Paracentric Inversion Paracetamol(Acetaminophen) Parachute Research Paracrine Paracrine Paracrine Paracrine Signaling Paradigm Paradigm Paradox Paradox Paradox Paradoxic Paradoxical Paraelectricity Paraffin Medicinal- Paraffin Oil Paraffin Section Paraffin Wax Paraffins Paraldehyde Parallax Parallel Progression Parallel Sequencing Paralog Paralysis Paralytic Shellfish Poisoning (PSP) Paramagnetic Paramagnetic Ferrofluid Paramecia Paramecium Parameter Parametric Statistics Paramutagenic Allele (Silenced Allele) Paramutation Paraneoplastic Paranuclear Body (Centrosome) Parasite Parasite Parasites Parasitic Parasitism Parasitism Parasitoid Parasitology Parasympathetic Nervous System Parathormone Parathormone Parathormone Parathyrine Parathyroid Parathyroid Gland Parathyroid Hormone (PTH) Parazoa Pare- (At, Beside, Side By Side) Parenchyma Parenchyma Cell Parenchyma Tissue Parental Generation Parenteral PARG (Poly (ADP-ribose) glycohydrolase) Parietal Cells Parietal Eye Parietal Lobe Parity Parkinson Disease (PD) Parkinson Disease (Parkinson's Disease) Parkinson’s Disease PARP (Poly (ADP-ribose) polymerase) Parr Parry's Disease (Exophthalmic Goitre) Parsecs (3.258 Light Years) Parsimony Principle Parson's Disease (Exophthalmic Goitre) Part per Billion (ppb) Part per Million (ppm) Parthen-, Partheno- (Without Fertilization) Parthenocarpy Parthenogen Parthenogenesis Parthenogenetic Partial Partial Pressure Partial Protein Partial Response Partially Fertile (Semi Fertile) Particle Particle Accelerators Particle Collider Particulate Particulate Particulate Antigen Particulate Inheritance Partition Chromatography Partition Chromatography Parturition Parvalbumin Parvoviridae (Viruses) Parvoviruses Pascal (Pa) Passaging Passenger DNA (Foreign DNA) Passenger Mutation (Do Not Directly Initiate Cancer) Passive Immunity Passive Immunity Passive Immunization Passive Polarization Passive Radiative Cooling Passive Transport Pasteur effect Pasteur's Germ Theory Pasteur's Theory (Germ Theory) Pasteurella Pasteurization Pasteurization Pasteurize PAT )Process Analytical Technology) Patch Recombinant Patch-Clamp Recording Patella Patent Patent Troll Paternity Paternity Test Paternity Tests Patho- Pathogen Pathogen Pathogen Surveillance Program (PSP) Pathogenesis Pathogenesis Pathogenic Pathogenic Pathogenic Variant Pathogenicity Pathogens Pathological Pathologist Pathology Pathway Pathway Patient-Derived Xenograft Models Pattern Recognition Patterning Pauling Electronegativity Pauling Electronegativity Scale Pauling Electronegativity Scale Paurometabola Pausing Pavolov Pouch Pavy's Disease (Cyclic Proteinuria) PAX (Paired Box Protein) Paxillin Paxlovid (Nirmatrelvir) Pb (Lead) PB (Processing Body) PBDEs PBG (Porphobilinogen) p-Block Elements PBN )Parabrachial Nucleus) pBR 322 Plasmid (Vector) pBR322 PBS (Primer Binding Site) PC (Phosphatidylcholine) PC (Plastocyanin) PC (Pyruvate Carboxylase) PCA (Principal Component Analysis) PCB (Polychlorinated Biphenyl) PCBs PCC (Premature Chromosome Condensation) PCM (Paracoccidioidomycosis) PCNA )Proliferating Cell Nuclear Antigen( pCO2 (partial pressure tof carbon dioxide) PCP (Phencyclidine) PCR PCr (Phosphocreatine) PCR (Polymerase Chain Reaction) PCR Machine PCR, Quantitative- PcrH Protein PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) PCV (Packed Cell Volume) Pd (Palladium) PD-1 PDE (Phosphodiesterase) PDZ and LIM Domain PDZ and LIM Domain Protein PE (Potential Energy) Peat Pecten Pectic Acid Pectic Enzyme Pectic Substances Pectin Pectin Sugar Pectinase Pectolytic Enzymes Pedi- (Foot) Pediatric Pedigree Pedigree Chart Pedogenesis Pedology Peer Peer Review Peers Review PEG (Polyethylene Glycol) Pehoaeomelanin Peking Men Pelagic zone Pelagiphage Pelger's Nuclear Anomaly Pelger-Huèt Nuclear Anomaly Pellagra Pellicle (Pellicula) Pelvis PEM )Paired End Mapping) Penetrance Penetrance Penetrance Genetic- Penetration Peneus Penicillin Penicillin Penicillin (C16H18N2O4S) Penicillin Acylase Penicillin Allergy Penicillin Binding Protein Penicillin Resistance Penicillinase Penicillium Penicillium Penicillium Notatum Penicillium roqueforti Penicilloic Acid Penicillopepsin Penis Penis Worms Pentachlorophenol Pentaerythritol Tetranitrate Reductase Pentitols Pentosans Pentose Pentose Metabolism Pentose Phosphate Cycle Pentose Phosphate Pathway (Hexose Monophosphate Shunt) Pentose Phosphate Pathway (Pentose Shunt) Pentose phosphate pathway (phosphogluconate pathway, hexose monophosphate shunt,  HMP Shunt) Pentose Shunt Penumocystis Carinii p-Enzyme PEP (Phosphoenolpyruvate) PEPC (Phosphoenolpyruvate Carboxylase) PEPCK (Phosphoenolpyruvate Carboxykinase) Peppermint (Mentha piperita) Pepsin Pepsinogen Peptidase Peptidase Peptidase T Peptide Peptide Peptide Peptide Bond (Amide Bond) Peptide Bond (Amide Bond) NCC-NCC Peptide Bonds (Amide Bonds) Peptide Hormone Peptide Map Peptide Mapping Peptide Sequencing Peptideases Peptides Peptidoglycan Peptidyl Transferase Peptidylglycan Peptidylglycan (Peptidoglycan) Peptidyl-tRNA Peptone Per (Excessive) Peracid Peracidity (Excessive Acidity) Perception Perchlorate (ClO−4) Perchloric Acid (HClO4) Perennial Perennial Plant Perfect Perfluoroalkyl Acids (PFAA) Perfluoroalkyl Substances(PFAS) Perfluorocarbon Perfluorocubane (C8F8 ) Perforin Perforin Performance Perfusion Perianth Periapse Periapse Periapsis Pericardium Pericarp Pericytes Periderm Peridium Perikaryon Perinatal Biology Perinuclear Perinuclear Cataract Perinuclear Cisterna Period Periodic Periodic Acid-Schiff (PAS) Stain Periodic Density Modulation Periodic Law Periodic Table Periodic Table Group IA Periodic Table Group IIA Periodic Table Group III (Transition Metals) Periodic Table Group VIIA Periodic Table Group VIIIA (Noble Gases) Periodic Table (2) Periodic Table (2) Periodic Table Features Periodic Table History Periodic Table of Elements Periodic Table Rows (Periodic Table Periods) Periodic Table Structure Periosteum Peripheral Peripheral Lymphoid Organ (Secondary Limphoid Organ) Peripheral Membrane Protein Peripheral Neuropathy Periplasm Perissodactyla Peristalsis Perithecium Peritoneal Peritoneum Peritrphic Membrane Permaforest Permafrost Permafrost Permanent Tissue Permanganate Ion (MnO4-) Permeability Permeable Permease Permease Inhibitors Permissive Permutation Peroxidase Peroxidase Reaction (Peroxidation) Peroxidation Peroxidation of Lipids Peroxide Peroxide Compound (Peroxy) (ROOR) Peroxide Ion (O22--)  Peroxiredoxin Peroxisome Peroxisome Peroxisome Proliferator Activated Receptor α Peroxisome Proliferator-Activated Receptors (PPAR) Peroxy (Perixide) (ROOR) Persalt Perseverance Perseveration Perseverative Persistence Persistent Persistent Infection Persona Personal Genomics Personal Protective Equipments (PPE) Personal Surveillance Personalized Medicine Personalized Medicine (Precision Medicine) Personalized Vaccines Perspective Perspectives Pertussis Toxin Pest Pest Control Pesticide Pests PET (Poly Ethylene Teraathalate) PET (Polyethylene) PET (Positron Emission Tomography) PET Scan (2) PET Scan (Positron Emission Tomography) PET(Poly Ethylene Terephthalate) Peta- (1015) Petal PETase (PET-Digesting Enzyme) Petiole PET-MRI (Positron Emission Tomography- Magnetic Resonance Imaging) Petri Dish Petrification Petroleum Petroleum (Crude Oil) Petroleum Ether PEV (Position Effect Variegation) Peyer’s Patches Peyote Cactus PFAS (Perfluoroalkyl and Polyfluoroalkyl Substances) PFAS (Polyfluoroalkyl Substances) PFGE (Pulsed- Field Gel Electrophoresis) Pfizer PFK (Phosphofructokinase) PFR ( P-730 ) PG (Prostaglandin) PG’s, PGE, PGF’s PGA (Phosphoglyceric Acid) PGAL PGD or PIGD (Preimplantation Genetic Diagnosis) PGDS (Prostaglandin D Synthase) PGI (Phosphoglucose Isomerase) PGK PGK1 (Phosphoglycerate Kinase) PGlycanase (PNGase) PGM (Phosphoglycerate Mutase) PGP (Preimplantation Genetic Profiling) PGS (Preimplantation Genetic Screening) pH pH (- log [H+]) pH (-Log Hydrogen Ion Concentration) PH Domain (Pleckstrin Homology Domain) pH Electrode pH Indicator pH Meter pH Meter pH Meter pH Scale pH Scale (2) pH Scale Examples Ph.D. (Doctor of Philosophy) PHA (Phytohemagglutinin) Phabdo- Phabdom Phaeoplasts Phaephyta Phage Phage (Bacteriophage) Phage Display Phage Encoded Phage Integrase Phage Therapy (Phagotherapy)  Phagemid Phages Phago-, -Phagy Phagocyte Phagocytes Phagocytes Phagocytic Phagocytosis Phagocytosis Phagocytosis Phagolysosome Phagolysosomes Phagosome Phalanges Phalloidin Phanerozoic Eon Pharmaceutical Biology Pharmaceutical Biotechnology Pharmaceutical Engineering Pharmaceutical Technology Pharmaco- Pharmacodynamic Interactions Pharmacodynamics Pharmacodynamics Pharmacogenetic Polymorphism Pharmacogenetic Polymorphism Pharmacogenetics Pharmacogenetics (Pharmacogenomics) Pharmacogenomics Pharmacogenomics Pharmacogenomics Pharmacogenomics (Pharmacogenetics) Pharmacognosy Pharmacokinetic Interactions Pharmacokinetics Pharmacologic Pharmacologic Profile (Drug Profile) Pharmacology Pharmacology Pharmacology Pharmacology and Therapeutics Pharynx Phase Phase 0 Phase 1 Phase 1 Clinical Study Phase 1 Clinical Trials Phase 1 Metabolism (Phase 1 Reactions) Phase 2 Phase 2 Clinical Study Phase 2 Clinical Trials Phase 2 Metabolism (Phase 2 Reactions) Phase 3 Phase 3 Clinical Study Phase 3 Clinical Trials Phase 3 Metabolism (Phase 3 Reactions) Phase 4 Phase Contrast Microscope Phase Contrast Microscopy Phase I Metabolism Phase II Metabolism Phase II Reactions Phase Invariance Phase Microscope Phase Separation Phase Transition Phaseoline Phase-Stable PIC PHD (Plant Homeodomain) Phe, F (Phenylalanine) Phenanthrene Phenanthrene (2) Phenanthrene (2) Phene Phenobarbital Phenocopy Phenogenetics Phenol Phenol (Coal Tar) Phenol Oxidases Phenolic Acids Phenolic Compounds Phenolic Compounds (2) Phenology Phenolphthalein Phenomics Phenon (Phenom) Phenotype Phenotype Frequency Phenotypic Analysis Phenotypic Landscape Phenotyping Phenotyping (2) Phenoxyacetic Phenyl Propanoids Phenylalanine (Phe) Phenylalanine (Phe) Phenylalanine Hydroxylase Phenylalanocholic Acid Phenylhydrazine Phenylhydrazine (Phenyl Hydrazine) Phenylhydrazine Test (Phenyl Hydrazine Test) Phenylketonuria (PKU) Phenylosazone Phenylpyruvate Decarboxylase Phenylthiourea Pheochromocytoma Pheoplasts Pheromone (Exohormone) Pheromone Binding Protein Pheromones Pheromones Philosophical Cosmology Philosophical Stone Phizome Phlebotomy Phloem Phlogiston Theory Pho4 Phonetic PhoP-PhoQ Phosgene Phosphagens Phosphatase Phosphatase Phosphatase (3) Phosphatase Test Phosphate Phosphate Backbone Phosphate Binding Protein Phosphate Bond Energy Phosphate Ester Bond (-P(O)-O-) Phosphate Group (-PO4) Phosphate Ion (PO43-) Phosphate Linkage Phosphate/Oxygen Ratio Phosphatidases Phosphatides Phosphatidyl Choline (Lecithin) Phosphatidylethanolamine Phosphine Phosphine (PH3) Phosphine (R3P) Phospho- Phospho Group (PO43) Phospho-Anhydride Bond Phosphoanhydride Bonds Phosphocarrier Protein HPr Phosphocreatine Kinase Phosphodiester Phosphodiester Bond Phosphodiester Bond Phosphodiester Bonds Phosphodiesterase Phosphodiesterase Phosphogluconate Dehydrogenase, 6- Phosphogluconate Pathway (Ppentose Phosphoglyceraldehyde (PGAL), 3- Phosphoglycerate Phosphoglycerate Dehydrogenase Phosphoglycerate Kinase Phosphoglycerate Mutase Phosphoglyceride Phosphohexose Phosphoinositide Phosphoinositide Cascade Phosphoinositide Phosphatase Phosphoinositides (Inositol Phospholipides) Phosphokinase Phospholamban Phospholipase A1 Phospholipase A2 Phospholipase A3 Phospholipase C Phospholipases Phospholipid Phospholipid Phospholipid Phospholipid Exchange Protein Phospholipidemia Phospholipids Phospholipids (2) Phospholipin (Phospholipid) Phosphomannomutase Phosphonic Acid (Phosphorus Acid) (H3PO3) Phosphoprotein Phosphoprotein Phosphoprotein Phosphatase (Protein Phosphatase) Phosphoproteins Phosphoproteomic Phospho-Q Phosphor (Phosphorus, P) Phosphorelay Phosphorescence (2) Phosphorescence (Glowing Effect) Phosphoribosyl Pyrophosphate Synthetase Phosphoribosyltransferase Phosphoric Acid (Ortho Phosphoric Acid, H3PO4) Phosphoric Acid, Glacial Phosphoric Acid, Meta Phosphorolysis Phosphorous Acid Phosphorus (P) Phosphorus (P) Phosphorus (P) Phosphorus (P) Phosphorus (P) Electronic Configuration Phosphorus- 32 Isotope (32P) Phosphorus Acid (Phosphonic Acid p(H3PO3) Phosphorus Containing Biomolecules Phosphorus Cycle Phosphorus Determination Phosphorus Electronic Configuration (P) (2) Phosphorus Fertilizers Phosphorus Isotopes Phosphorus-32 (P32) Phosphorylase Phosphorylated Thiamine (Thiamine Pyrophosphate) Phosphorylation Phosphorylation Phosphorylation Reactions Phosphorylation Reactions Phosphoserine Phosphoserine Aminotransferase Phosphoserine Phosphatase Phosphotransferase Phosphotriesterase Photo- Photo Catalysis Photo Oxidation Photoablation Photoautotroph (Phototrophic Lithotroph) Photocatalysis Photocatalyst Photocatalysts Photocatalyzer (Photocatalyst) Photochemical Reaction Photochemical Reactions Photochemistry Photodensitometry Photodynamics Photoelectric Effect Photoelectric Effect and Quantum Theory Photoelectro Chemical Energy Photoenzyme Photoheterotroph Photolithotroph Photoluminescence Photoluminescence Spectroscopy Photolysis Photolysis Photometer Photometric Protein Photometry Photomicrography Photomolecular Effect (Photochemical Effect) Photomultiplier tube Photon Photonic Integrated Circuit (PIC) Photonic Integrated Circuits Photons Photons (2) Photoorganotroph Photoperiod Photoperiodism Photophosphorylation Photoreaction Photoreactivation Photoreactiveation Photoreceptor Photoredox Catalysis Photorespiration Photosensitive Pigments Photospheric Metals Photosynthate Photosynthate (Organic Carbon Produced by Photosynthesis) Photosynthesis Photosynthesis Photosynthesis (2) Photosynthesis (3) Photosynthetic Photosynthetic Bacteria Photosynthetic Carboxylation Photosynthetic Cycle Photosynthetic Electron Transfer Photosynthetic Phosphorylation Photosynthetic Pigments Photosystem I Photosystem II Photosystems Phototaxis Phototroph Phototrophic Lithotroph Phototrophic Organotroph Phototrophy Phototropic (Phototrophic) Phototropism Photovoltaic (PV) Cells Photovoltaic (PV) Cells Photovoltaic Effect Phragmoplast Phthalate Phthalates Phthalic Acid Phycobilin Phycobiont Phycobiont Phycocyanin Phycocyanobilin:Ferredoxin Oxidoreductase Phycocyanobilin:Ferredoxinoxidoreductase Phycoerythrin Phycomycetes Phycomycotina Phye-, Phyco- Phyllo- (phyll-) Phylloquinone (vit. K) Phylo- (Phyl-) Phylogenesis Phylogenetic Analysis Phylogenetic Tree Phylogenetics (Phylogeny; Phylogenesis) Phylogenic Phylogenomics Phylogeny Phylogeny Phylum Phylum (Division) Phylum (pl. Phyla) Physeter Physical Physical Biochemistry Physical Biochemistry Physical Constants Physical Constants Physical Map Physical Properties Physical Science Physical Sciences Physical Toxicants Physicochemical Physics Physics Physics Constants Physiologic Zero Physiological Physiological Anatomy Physiological Biomarkers Physiological Saline Physiology Physostigmine Phytase phyte Phytic Acid Phytin (R) Phyto-, - phyte Phytoagglutinins Phytoalexine Phytochemical Phytochemicals (Natural Products) Phytochemistry Phytochemistry Phytochemistry Phytochemistry (2) Phytochemistry (2) Phytocholic Acid Phytochrome Phytoecdysone Phytogeography Phytohormones Phytomedicine Phytomedicine (Herbal Medicine) Phytomedicine (2) Phytopathology Phytophagous Phytoplankton Phytoplanktons Phytoplanktons Phytosiderophores Phytosterol Phytosterols Phytotoxins PhytoToxins (Plant Toxins) Pi (Inorganic Phosphate; Orthophosphate Ion) pI (Isoelectric Point) PI (Phosphatidylinositol) Pi (π) Pi Bond (π Bond) PI3K (Phosphoinositide 3-Kinase) PIC (Photonic Integrated Circuit) Pica Pico (10-12) Picodnavirus (Parvovirus) Picometer (pm) Picornavirus Picornaviruses Picric Acid Picrotoxin (Cocculine) Piezoelectric Piezoelectricity Pigment Pigment Pigment Cells Pigment Systems Pigmentation Pigmented Ameloblastoma (Melanotic Neuroectodermal Tumor) Pileus (Cap) Pili Pilin Pillotinas Piloerection Pilot Project Pilot Study Pilus Pim-1 (Proto-Oncogene Serine/Threonine-Protein Kinase) Pimonidazole Pineal Body Pineal Eye Pineal Gland Ping- Pong Kinetics Ping- Pong Reaction Pinnepids Pinocytosis Pinosome Pint Pioneer Pioneer Pioneer Round of Translation Piperidine Alkaloids Piperonyl Butoxide piRNA Piscicide Pistil Pit Pitch Pitch Length Pith Pithing Pitressin (Vasopressin) Pits Pituitary Adamantinoma (Craniopharyngioma) Pituitary Dwarfism Pituitary Gigantism Pituitary Gland Pituitary Gland (2) Pituitary Gland Disorders Pituitary lactogenic Hormone Pivotal Pixelating PK (Pyruvate Kinase) pKa pKa (2) PKA (Cyclic AMP Dependant Protein Kinase) pKa (-log Ka) pKah pKb (2) pKb (-log Kb) PKC (Protein kinase C) PKU (Phenylketonuria) Pl (IEP ) PLA2 (Phospholipase A2) Placebo Placebo Placebo-Controlled Studies Placebo-Controlled Study Placenta Placenta Placenta Placental Placoderms Placozoa Plage Plagiarism Plagiarism Plagiarism (2) Plagiarism Detection Plagiarism Detection Tools Plague Plague of Athens (430-426 BCE) Plague of Justinian (541-750 CE) Plana-, Plani-, Plans- Planaria (Flat Worms ) Planck Length (1.616×10⁻³⁵ meters) Planck Time Planck's Constant (h) Planck's Theory (Quantum Theory) Planck’s Constant (h) (Quantum Constant) Planet Planetary Health Planetary Science Decadal Survey Planetary System Planetesimals Plank’s Constant ( h ) Plankton Planktons Planning Plant Plant Cell Culture Plant Genetic Manipulation Plant Growth Regulators Plant Homeodomain (PHD) Plant Hormones Plant Hormones Plant kingdom Plant Molecular Biology Plant Physiology Plant Pigments Plant Taxonomy Plant Tissue Plant Tissue Culture Plantae Plantains Plantation Management Plaque Plasm-, Plasma-, Plasmo- Plasma Plasma Plasma Albumin Plasma Arc Spectroscope Plasma B Cells Plasma Cell Plasma Cell (Plasma B- Cell) Plasma Channels Plasma Gas (Physics) Plasma Growth Factor Plasma Lipoproteins Plasma Membrane (Cell Membrane) Plasma Proteins Plasma Transferrins Plasmablast Plasmacytoid Dendritic Cells Plasmagel ( Ectoplasm ) Plasmagene Plasmalemma Plasmalogens Plasmasol (Endoplasm) Plasmepsin Plasmid Plasmid Plasmid Cloning Vector Plasmid Conjugative- Plasmid DNA Plasmid F Plasmid Incompatibility Plasmid R Plasmid Segregation Plasmid Segregation Protein ParM Plasmid Transmissible- Plasmid Types Plasmid Vector Plasmids (2) Plasmids, Chimeric Plasmin (Fbrinolysin) Plasminogen Plasminogen Activator Plasminogen Activator Inhibitor Plasmkinin Plasmodesma (Plasmodesmata) Plasmodial Slime Molds Plasmodium Plasmodium Plasmodium Plasmodium falciparum Plasmodium falciparum Plasmodium knowlesi Plasmodium malariae Plasmodium malariae Plasmodium ovale Plasmodium Toxins Plasmodium vivax Plasmogamy Plasmolysis Plasmons Plasmosome (Nucleolus; mitochondria) Plastic Strain Plasticity Plasticosis Plastics Plastid Plastocyanin Plastogene Plastoquinone (Plastiquinone) Plastron Plate Plate Count Plate Tectonics Platelet Activating Factor Acetylhydrolase Platelet Aggregation Platelet Aggregation Test Platelet Count Platelet Phospholipids Platelet Thrombosis PlateletAgglutinin (Hrombagglutinin Platelet-derived Growth Factor (PDGF) Platelet-Receptor Glycoprotein Ib Alpha (CD42) Platelets Platelets Platelets (Thrombocytes) Platelets Classification Plating Technique Platinum ( Pt ) Platonic Platy- Platyhelminthes PLC (Phospholipase C) Pleckstrin Homology Domain (PH Domain) Plectin Pleiomorphic Pleiotropy Pleiotropy (One Gene Affecting More Than One Trait) Pleistocene Pleistocene Epoch Pleomorphic Pleura Pleural Pleural Effusion Pleuropneumonia–Like Organisms Plexiform Plexin Plexus Pliocene Epoch Ploidy Plot PLP (Pyridoxal-5-Phosphate) PLTP (Phospholipid Transfer Protein) Plume Pluripotency Pluripotent Pluripotent Stem Cells Plus End Plus Strand DNA Plus Strand Virus Pluto Pluto Plutonium (Pu) Plutonium (Pu) PM (Particulate Matter) pm (Picometer) PM 10 (Particulate Matter 10 Micron) PM 2.5 (Particulate Matter 2.5 micron) PM2.5 PM2.5 (Particulate Matter 2.5) PMF (Proton Motive Force) PMS PMS (Phenazine Methosulphate) PMS (Premenstrual Syndrome) PMSG Pneumocytes Pneumonia Pneumonia Virus Pneumonoultramicroscopicsilicovolcanoconiosis Pneumothermomassage PNGase (Peptide N-Glycanase) PNMT (Phenylethanolamine N-Methyltransferase) PNP (Purine Nucleoside Phosphorylase) PNP )Phosphorylase) PNS (Peripheral Nervous System) p-Nucleotide Pocilloporids Pocket Protein Podosome pOH (-log[OH-]) Poikilothermic Point Mutation Point mutations Poiseuille Flow Poison Poison Frogs (Poison Dart Frogs) Poison Frogs Toxins Poison Ivey Poison Oak Poison Sumac Poisoning Poisoning , Food Poisoning, Fulminant-  Poisson Distribution Poisson Distribution Pol (Polymerase) Polar Polar Bodies Polar Body Polar Covalent Bonding Polar Covalent Bonds Polar Fusion Nucleus Polar Group Polar Lipids Polar Molecule Polar Mutation Polar Nucleus Polar Solvent Polar Solvent Polar Tubules Polarimeter Polariscopic Analysis Polariton Polarity See Apico-Basal Polarity Polarizations Polarized State Polarizing Microscope Polarizing Microscope Polarogra Polcyclic Aromatic Hydrocarbon Polio (Poliomyelitis) Polio Vaccine Poliomyelitis Poliomyelitis Poliomyelitis Virus Poliovirus Pollard, Ernest (20th century) Pollen Grains Pollen Sac Pollen Tube Pollination Pollination Wind Pollination, Insect Pollution Pollution Pollution CO2 Pollution Control Pollution Methane Pollution Types Poloma Virus Polonium Poly- Poly (ADP-Ribose) Poly A RNA Poly Ketides Poly(A) Poly(A) Nuclease (or Deadenylase) Poly(A) Polymerase Poly(A) RNA polymerase Poly(A) RNA Polymerase Protein Cid1 Polyacrylamide Polyadenylation Polyamine Polyamine Oxidase Polyandry Polyaromatic Hydrocarbons (PAHs) Polyatomic Molecules (Complex Molecules) Polychlorinated Biphenyls (PCB’s) Polycistronic mRNA Polyclonal Polyclonal Activation Polyclonal Antibodies (pAbs) Polycyclic Aromatic Hydrocarbons (PAHs) Polycyclic Aromatic Hydrocarbons (PAHs) Polycyclic Hydrocarbons Polycythemia Polydactyly Polydeoxyribonuchlotide Polyelectrolytes Polyembryony Polyene Antibiotic Polyestrous Mammal Polyethylene Polyethylene Glycol (PEG) Polygalacturonase Polygamy Polygene Polygene (Multiple Gene Inheritance) Polygenes Polygenic Polygenic Inheritance (Quantitative Inheritance) Polygenic Trait Polygenic Trait Polyglucosan Polygyny Polyisoprenoid (Isoprenoid) Polykaryon Polyketide Polyketides Polymer Polymer Polymer Gels Polymerase Polymerase Polymerase Chain Reaction (PCR) Polymerase Chain Reaction (PCR) Polymerase, DNA or RNA Polymeric Molecules Polymerization Polymerization Polymetallic Nodules Polymorphic Polymorphism Polymorphism Polymorphism (SNP) Polymorphism, Balanced- Polymorphism, Pharmacogenetic- Polymorphism, Transient- Polymorphonuclear Granulocyte (Segmented Granulocyte) Polymorphonuclear Leukocyte Polymorphonuclear Neutrophils Polymyxins Polyneuridine Aldehyde Esterase Polyneuropathy Polynucleotide Polynucleotide Kinase Polynucleotide Phosphorylase Polynuclotidase Polyol Dehydrogenase Polyols Polyoma Polyomaviridae (Viruses) Polyp Polyp Polyp Polypectomy Polypeptide Polypeptide Polypeptide Backbone Polypeptide Hormone Polyphagous Polyphenolic Compounds Polyphenols Polyphenols (2 Polyphenols (3) Polyphenols (3) Polyploid Polyploidization Polyploidy Polyprotein Polyribosome (Polysome) Polysaccharide Polysaccharides Polysome (Polyribosome) Polyspermy Polytechnic Polytene Chromosome Polytene Chromosomes Polyunsaturated Fatty Acids (PUFA ) Polyuria Polyvalent Polyvalent Antiserum Polyvalent Ion Polyvalent Vaccine Pompe Disease Pongoides Pons Pons Pool Poppy Oil Poppy Seed Oil Poppy Seeds Poppy Seeds (Papaver somniferum) Population Population Biology Population Cage Population Density Population Dynamics Population Ecology Population Genetics Population Genetics Population Genetics (2) Population Genetics (3) Population Genomics Population Genomics Population Stratification Population Stratification (Population Structure) Population Stratification (Population Structure) Porcaryotic Cell Pore Porifera Porin (Omp) Porphin Porphobilinogen Deaminase Porphobilinogen Synthase Porphyrin Porphyrins Porphyropsin Portal Portal Vein Portease Porteinoids Porteose Portfolio Position Effect Position Isomerism (Substitution Isomerism) Positional Cloning Positional Cloning Positional Information Positive After Potential Positive Afterpotential Positive and Negative Leaders (Lightenting) Positive Climate Feedback Positive Control Positive Control (2) Positive Cooperativity Positive Feedback Positive Feedback Loop Positive Inducible Positive Repressible Positive Selection Positive Selection (MHC Restriction) Positive Sense RNA Virus; (+) RNA Positive-Sense Single-Stranded RNA Virus ((+)ssRNA viruses) Positron Positron Annihilation Positron Emission Tomography Scan (PET Scan) Positrons Positrons (Anti-Electrons) Post- post Mortem Post Transcriptional Control Post Translational Post Translational Modification Postcranial Anatomy Posterior Posterior Mallear Fold of Tympanic Membrane Posterior Pituitary Gland Post-Mitotic Postmodern Era Postmortem (Autopsy) Postmortem Toxicology Postmorten Post-Nauplius Postnuclear Cap Postoperative Postpartum Postreplication Complex Postsynaptic Postsynaptic Cell Postsynaptic Membrane Postsynaptic Potential (PSP) Post-transcriptional Modification Post-translational Modification Posttranslationally Postulate Potable Water Potassium (K) Potassium (K) Potassium (K) Potassium (K) Potassium (K) Electronic Configuration Potassium Channel Potassium Channel Toxin Potassium Chloride (KCl; Muriate of Potash) Potassium Fertilizers Potency Potency Potent Potential Potential Energy (PE) Potential Energy Surface Potential Pollution Potential Risk Potentially Toxic Chemicals Potentiation Potentiometer Pouch Power Law Power of Ten Power-Law Distribution Poxviridae (Viruses) Poxviruses Poxviruses (Pox Viruses) Poylycyclic PP (Pyridoxal 5-Phosphate) PP- Factor PPA (Phenylpyruvic Acid) PPAR (Peroxisome Proliferator-Activated Receptors) ppb PPE (Personal Protective Equipment) ppGpp (Guanosine 5-Diphosphate 3-Diphosphate) Pphosphate (PO4−3) PPi (Pyrophosphate Ion) PPIase (Peptidyl-Prolyl cis-Trans Isomerase or Peptidyl-Prolylcis Transisomerase) PPLO ppm ppt PQ (Plastoquinone) PR (P-660) Pr (Prion) Prader-Willi Syndrome Pre- Pre- Bcell Pre Qualification Pre-, Pro- Prebiotics Precambrian Eon Precambrian Eon Precession Precipitate Precipitate Precipitation Precipitation Reactions Preciptin Test Precise Precise Excision Precision Medicine (Individualizing Medicine) Precision Medicine (Personalized Medicine; Individualized Medicine) Precision Medicine (Personalized Medicine) Preclinical Pre-clinical Preclinical Medicine Preclinical Studies Precocenes Preconception Visit  Precursor Predacious Predation Predator Predator Predators Predatory journals Predatory Journals Prediction Prediction Markets Predictive Analysis Predictive Genetic Testing  Predictive Processing Theory Predisposing Cause Preenzyme (Proenzyme) Preexisting Preexisting Condition Prefrontal Prefrontal Cortex Prefrontal Cortex (PEC) Preimplantation Genetic Diagnosis (PGD) Preimplantation Studies  Preinitiation Complex Pre-Leukaemic Myeloproliferation Pre-Main-Sequence Stars Premalignant Lesions Premature Termination Premordial Premotor Area Pre-mRNA Prenatal Prenatal Diagnosis  Prenylation Preoptic Pre-Oral Gut Diverticula Preparative Centrifuges Preproinsulin Preprophase Band Preprotein Translocase (Preproteintranslocase) Prereplication Complex Prescriptive Analysis Presentation Preservation Preservative Pressure (P) Pressure Potential Pressure Receptor Pressure, Standard Atmospheric Prestin Presymptomatic Genetic Testing  Presynaptic Presynaptic Cell Presynaptic Filaments Presynaptic Membrane Presynaptic Neuron Preternatural Anus Prevail Prevalence Prevalence Rate Prevention Prevention Paradox Preventive Preventive Medicine Preventive Therapy Preventive Vaccines Prey Primaquine- Sensitive Anemia (Glucose-6-Phosphate Dehydrogenase Deficiency Anemia) Primary Primary (RNA) Transcript Primary Amine (RNH2) Primary Cells Primary Cilia Dyskinesia Primary Cilium Primary Culture Primary Immune Response Primary Lymphoid Organs Primary Messengers Primary Producer Primary Production Primary Protein Structure Primary Protein Structure Primary Resistance Primary Sex Ratio Primary Sexual Character Primary Somatosensory Cortex Primary structure Primary Succession Primary Tumor Primase Primate Primate Genomics Primates Genomes Primatology Prime Numbers Primer Primer DNA Primer Pheromone Primer RNA Primers Primitive Primordial Primordial Primordial Abiogenesis Primordial Biomolecules Primordial Dwarfism Primordial Germ Cell Primordium Primosome Primosomes Principal Investigator (PI) Printer- 3D Prion (Pr) Prion Disease Prions Priorities Priority Agenda Priority Pollutant Pristine Condition Pro- Pro, P (Proline) Probabilistic Approach Probability (of an Event) Probability (P Value) Probability Value (P-value) Proband Proband Proband (Propositus) Proband (Propositus) Probe Probe Probe (pl. Probes) Probiotic Probiotic Probiotic Bacteria Probiotics Probiotics Problem Solving Proboscis Procarcinogen Procaryotes Procaryotic (Prokaryotic) Proceedings Proceedings of the National Academy of Sciences (PNAS) (Journal) Proceedings of the Royal Society B: Biological Sciences (Journal) Process Process Engineering Processed Food Processed Pseudogene Processing Processing Processive Processive (Nuclease) Processive Enzyme Processivity Prochiral Compound Prochiral Molecule Proconsul Proct-, Procto- Proctodone Procuticle Pro-Drug Producers Product Product Inhibition Productive Rearrangement Productivity Pro-enzyme (Proenzyme) Proenzymes Proerythroblasts Professional Antigen-Presenting Cell Proficiency Test Profile Profile Profile Record Profilin Proflavine Progenitor Progeny Progeny (Offspring) Progeria Progesterone Progesterone Progesterone Progestogen Prognosis Program Portability (System Portability) Program Synthesis Programmed Cell Death (Apoptosis) Programmed Cell Death Proteins (Apoptosis Proteins) Programmed Frameshifting Programming Programming Language Programming-Language Portability Progress Progression Progression-Free Survival Progressive Progressive Disease Progressive Nuclear Amyotrophy Prohormone Proinsulin Proinsulin Project Project, 1000 Genomes- (1KGP) Projectile Projection Projection Microscope Projection X-Ray Microscope Prokaryon Prokaryote Prokaryote (Procaryote) Prokaryotes Prokaryotic Prokaryotic Cell (Procaryotic) Prolactin Prolactine (Lactotropin) Prolamines Prolate Proliferate Proliferate Proliferation Proliferation Proliferation Index Proliferative Proline (Pro) Prolyl Endopeptidase Prolyl Endopeptidase Prolyl Hydroxylase Domain Promegakaryocyte Prometaphase Promiscuous DNA Promitochondria Promote Promote Promoter Promoter Promoter Gene Promoter Gene Promoting Promotion Promotion PROMPT (Prompt) Promyelocyte Pronase Pronucleus Proof of Concept (POC) Proofreading Propagating Wave Sleep Propagation of Nerver Imulse Prophage Prophage Prophage Prophase Prophylactic Prophylactic Antibiotic Prophylactic Medicine Propionic Acid Proplastid Proposita (Female Proband) Proposition Proposito (Male Proband) Propositus (Proband) Proprioception Proprioreceptor Proprotein ProRS (Prolyl-tRNA Synthetase) Prosencephalon (Forebrain) Prospective Prostaglandin F Synthase (AKR1C3) Prostaglandin Synthetase Prostaglandins Prostaglandins Prostaglandins (PG’s) Prostate Prostate Cancer Prostate Cancer Prostate Cancer Prostate Specific Antigen (PSA) Prostate-Specific Antigen (PSA) Test Prosthetic Group Prosthetics Prosthetics Feedback Protagonist Protamines Protease Protease (Proteinase) Protease Inhibitors Protease Inhibitors Protease inhibitors (2) Proteases Proteasome Proteasome Proteasome Inhibitors Proteasomes Protection Protective Proteins Protegrin Protegrins Protein Protein (BMP) Protein Balance Protein Biosynthesis Protein Cid1 Protein Classification Protein Coat Protein Coding Genes (Eukaryotes) Protein Coding Genes (Prokaryotes) Protein Complex Protein Crystallization Protein Crystallization Protein Defects (Protein Abnormalities; Protein Mutations) Protein Degradation protein Denaturation Protein Design Protein Determination Protein Determination Protein Disulfide Oxidoreductase Protein Domain Protein Engineering Protein Engineering Protein Equilibrium Protein Equivalent Protein Expression Protein Extract Protein Folding Protein Folding Protein Foldings (2) Protein Function Protein Fusion Protein G Protein Glycosylation Protein Isoform (Protein Variant) Protein Kinase (PIA) Protein Kinase C Protein Kinase Spk1 (Rad53) Protein ParM Protein Phosphatase Protein Phosphatase (Phosphoprotein Phosphatase) Protein Phosphorylation Protein Purification Protein Regulation Protein Sequence Protein Sequencer Protein Sequencing Protein Shapes Protein Splicing Protein Structural Support Protein Structure Protein Structure Protein Structure Prediction Protein Structure Prediction Protein Structure, Primary- Protein Structure, Quaternary- Protein Structure, Secondary- Protein Structure, Tertiary- Protein Structures Protein Subunits Protein Subunits Protein Synthesis Protein Synthesis Protein Technology Protein Translocator Protein Transport Protein Variant (Protein Isoform) Protein, Agrin- Protein, Crude- Proteinase (Protease) Protein-Coding Single Nucleotide Variants Protein-losing Enteropathy Proteinogenic Proteinogenic Amino Acids  Proteins Proteins Toxins Protein-Sparing Diet Proteogenomics Proteoglycan Proteolysis (adj., -lytic) Proteolytic Proteolytic Enzyme (Protease) Proteolytic Enzymes Proteome Proteomes Proteometabolic Proteometabolism Proteomic and Genomics Proteomics Proteomics Proteorhodopsin Proteostasis Proterozoic Eon Prothallium Prothesis Prothesis (Prosthesis) Prothoracic Gland Prothoracic Hormone (PTH) Prothrombin Prothrombin Protist Protista Kingdom Protistology Protists (2) Protists (Protista) Proto- Omcogene Proto Oncogene Proto- Oncogene Tyrosine-Protein Kinase Proto- Oncogenes Protoalkaloids Protocluster Protoctista Protofilament Protokeel Protomer Proton (H+) Proton Acceptor Proton Gradient Proton Motive Force (PMF) Proton Pump Proton Pump Proton Pump Protonophore (Proton Translocator) Protons Protons (2) Protooncogene Proto-Oncogene Tyrosine-Protein Kinase Protoplanetary Protoplasm Protoplasmic Poisons Protoplast Protoplast Protoplast Fusion Protostar Prototroph Prototrophism Prototype Protozoa (2) Protozoa (Protozoan) Protozoa Toxins Protozoan Protozoans Protropin Proventriculus Provirus Provisional Agenda Provitamine D2 Provitamine D3 Provitamins Proximal Proximal Proximal Proximity Proximity To Prp (Pre-mRNA Splicing Factor) PrP (Prion Protein) PRPP )Phosphoribosyl Pyrophosphate) Prussic Acid (HCN) PS (Phosphatidyl Serine or Phosphatidylserine) PS (Photosystem) PS (Photosystem; Phosphatidylseine) ps (Picosecond) PSA (Prostate Specific Antigen) PSA (Prostate-Specific Antigen) Pseud-, Pseudo- Pseudechetoxin Pseudo- Pseudo Alleles Pseudo Antagonist Pseudo Gene Pseudo Quantification Pseudo Uracil Pseudoazurin Pseudocholinesterase Pseudocoelom Pseudocubic Pseudocycle Pseudogene Pseudogene Pseudogenes Pseudogenes (2) Pseudomonas Pseudopilin Pseudopod (False Foot) Pseudopodia Pseudopodium (Pseudopodia) Pseudopregnant Pseudoscience Pseudoscience Pseudotemporal Alignment of Differentiation Paths Pseudouridine Pseudouridine (Ψ) Pseudovirion Pseudovirus PSI, PS II Psilocin Psilocybin Psilocybin Psilocybin p-Site PSP Test (Phenolsulphonphthalein) Psychedelic Psychedelic Drugs Psychedelics Psychedic Drugs Psychoactive Drugs Psychoactive Substances Psychology Psychosis Psychotropic Drugs Psychotropic Drugs Psychrophilous PTC (Phenylthiocarbamide) Pteridine Reductase (Pteridinereductase) Pterins (Pteridiness ) Ptero- PTH (Parathyroid Hormone) PTH (Parathyroid Hormone; Parathormone) PTH (Parathyroid Hormone; Parathormone) PTH (Peptidyl-tRNA Hydrolase) PTM (Posttranslational Modification) PTTH (Prothoracicotropic Hormone) Ptyalin Pu Puberty Puberty Public Public Antigens Public Epitopes public Health Public Health Impact Assessment Public Health Medicine PubMed (Public/Publisher MEDLINE) PubPrecursor Enzyme Pudenda Puff Puffer Fish Pulmo- Pulmonary Pulmonary Artery Pulmonary Pathologist Pulmonary Vein Pulsar Pulse Chase Analysis Pulse Oximeter Pulsed- Electron Paramagnetic Resonance Spectroscopy Pulsusalternans Pump Punnet Square Punnett Square Pupa (pl. Pupae) Pupation Pupil PurE (Phosphoribosylaminoimidazole Carboxylase) Pure Culture (Axenic Culture) Purification Purified Water Purifying Selection Purine Purine Alkaloids Purine Nucleoside Purine Nucleotide Cycle Purkingje Fiber Purkinje Cells Purkinje Cells (Purkinje Neurons) Purkinje Effect Purkinje Effect (Purkinje Shift) Purkinje Fibers Purkinje Vesicle Purkinje Vesicle (2) Purkinje's Phenomenon Puromycin Purple PurR (Purine repressor) PutA (Proline utilization A) Putative Putrefaction Putrid PXR (Pregnane X Receptor) Py Pycnosis PYE (π) Pyknosis Pyramid of Biomass Pyramid of Energy Pyramid of Numbers Pyramid, Ecological Pyranose Pyranose Oxidase Pyrene Pyrenoid Pyrethrins Pyrethrins Pyrethroids Pyrethroids Types Pyrethrum Flowers Pyrex Pyridine Alkaloids Pyridoxal kinase Pyridoxine (Vit.B6) Pyridoxine 5'-Phosphate Oxidase Pyridoxine Dehydrogenase Pyrimidine Pyrimidine Dimer Pyrin Domain Pyro- (L. Fire) Pyro Sequencing Pyrodictium Pyrogen Pyrogen Pyrogenic Pyroglutamic Acid (5- Oxoproline) Pyrolysis Pyronin Y Pyrophosphate (P2O74−) Pyrophosphokinase Pyrophosphorolysis Pyroptosis Pyrosequencing Pyrosequencing Pyrotoxin Pyrrole Pyrrolidine Alkaloids Pyrroline-5-Carboxylate Dehydrogenase Pyrroline-5-Carboxylate Reductase Pyrrolysyl-tRNA Synthetase Pyrrophyta Pyruvate Pyruvate Decarboxylase Pyruvate Dehydrogenase Pyruvate Dehydrogenase Pyruvate Dehydrogenase Kinase Pyruvate- Ferredoxinoxidoreductase Pyruvate Kinase Pyruvate Phosphate Dikinase Pyruvate-Ferredoxin Oxidoreductase Pyruvic Acid Pythagoras (ca 570 -495 BCE) (Scientist) Python