L (Liter) L- Alanine (Ala) L- Amino Acid Label Label Label Radioactive Labeled Labeled Compound Labium Laboratories Laboratory Laboratory Animals Laboratory Diagnostics Laboratory Equipments Laboratory Medicine (Clinical Laboratory Science) Laboratory Techniques Lac (Lactose) Lac Operon (Lactose Operon) Lac Repressor Laccases (Copper-containing oxidases) Lacquer Lacrimal Apparatus Lacrimal Fluid Lacrimal Gland Lacrimation Lacrimators Lact-, lacta-, lacte-, lacto- Lactalbumin Lactam Lactam Antibiotics-β- Lactase Lactase Lactase Gene Lactate (CH3CH(OH)COO-) Lactate Dehydrogenase (LDH) Lactate Dehydrogenase (LDH) Lactate Dehydrogenase (LDH) Lactate Dehydrogenase (LDH) Isozymes Lactation Lactic Acid (CH3CH(OH)COOH) Lactic Acid Bacteria Lactic Acid Fermentation Lactide Lactifers (Lactiferous) Lacto Oligosaccharides (LOS) Lactobacillus Lactobacillus Lactobiose Lactoferrin Lactoferrin Lactoferrin (2) Lactoflavin (Riboflavin) Lactogenic Hormone Lactoglobulin Lactoglobulin Lactone Lactonic Lactoperoxidase Lactose Lactose Intolerance Lactose Intolerance Lactose Permease Lactose-β Lactulose Lactulose Lacuna  Laevulose (Fructose) Lag Growth Phase Lag Phase Lag Phase (Lag Period) Lageniform Lagging Strand Lagging Strand Lamarck's Theory Lamarckism Lamarkian Inheritance Lambda (l) Lambda (l) (one microliter, µL or one cubic millimeter) Lambda Bacteriophage (Lamda Phage) Lambda Chain Lambda Phage (Enterobacteria Phage ) Lambert-Beer Law Lamella Lamin (Nuclear Lamin) Lamina (pl. Laminae) Lamina Propria Laminarin Laminins Lampbrush Chromosomes Lampyris Land Snail Landfill Gas Langerhans Cells Langerhans Islands Lanolin Lantern Fish Lanthanides Lanthanides Lanthanides Examples Lanugo Laparoscope Laparoscopy Large Calorie (Cal) Large Intestine Large T Antigen Larva (pl. Larvae) Larvae Larynx Laser (laser (light amplification by stimulated emission of radiation) Laser Ablation Laser Microprobe Laser Microscope Laser Scanning Lasioderma serricorne L-Asparaginase L-Asparagine (Asn) L-Aspartic Acid (Asp) Lassa Fever Virus Late Genes Late Infection Latency (Latent Period) Latent Latent Learning Latent Period​ Latent Virus Disease Lateral Lateral Element (Axial Element) Lateral Gene Transfer Lateral Inhibition Lateral Line System Latex Latin American Centre for Educational Technology in Health Latin Language (L) Latin Square Latrochemical Latrochemistry Lattice Laughing Disease (Kuru) Laughing Gas Lauric Acid (C12H24O2) LAV (Lymphadenopathy Associated Vitrus) Lava Lavender Lavender (Lavandula angustifolia) Law Law Law (Principal) of Dominance (Mendel) Law (Scientific) Law Avogadro’s- Law Beer- Lambert- Law Boyl’ s- Law Bradford’s- Law Bragg’s- Law Charles’- Law Conservation- Law Dalton’s- Law Faraday’s- Law Fick’s- (of Diffusion) Law First Law of Thermodynamics- Law Gay- Lussac’s- Law Graham’s- Law Hardy-Weinberg- Law Henry’s- Law Ideal Gas- Law Joule’s- Law Kepler’s (of Planatery Motion) Law Newton’s- (of Cooling) Law Newton’s (of Motion) Law Newton’s (of Universal Gravitation) Law of Alternate Segregation Law of Conservation of Energy Law of Conservation of Mass Law of Conservation of Mass Law of Conservation of Matter Law of Definite Composition Law of Definite Proportions Law of Dominance Law of Gravity Law of Independent Assortment (Mendel) Law of Large Numbers Law of Mass Action Law of Mass Action Law of Mass Conservation Law of Mass Conservation (2) Law of Multiple Proportions (1) Law of Multiple Proportions (2) (Dalton) Law of Multiple Variants Law of Partial Pressures Law of Priority Law of Relativity (Einstein) Law of Segregation Law of Segregation Law Ohm’s- Law Ostwald’s- (of Dilution) Law Pascal’s- Law Periodic- Law Plank’s- Law Raoult’s- Law Rule of- Law Snell’s- Laws Mendell’s- Laws of Biology Laws of Chemical Kinetics Laws of Chemistry Laws of Genetics Laws of Inheritance Laws of Mendel Laws of Motion Laws of Physics Laws of Thermodynamics Laws of Thermodynamics Laws, Newton’s- Laydybird Beethe LBM (Lean Body Mass) LC (Lethal Concentration) LC (Liquid Chromatography) LC50 (Lethal Concentration 50) LCAT (Lecithin- Cholesterol Acetyltransferase) LC-ICP-MS (Liquid Chromatography - Inductively Coupled Plasma – Mass Spectrometry) LC-MS (Liquid Chromatography-Mass Spectrometry) LC-MS  (Liquid Chromatography-Mass Spectrometry) LC-MS/MS Orbitra LC-MS/MS-Time of Flight (TOF) LCR (Light Chain Reaction) LCR (Locus Control Region). L-Cysteine L-Cysteine(Cys) LD (Lethal Dose) LD (linkage disequilibrium) LD50 (Lethal Dose 50) LD50 ((Half Maximal Lethal Dose) LDH (Lactate Dehydrogenase) LDL (Low Density Lipoprotein) LDL (Low Density Lipoprotein) LDL Cholesterol LDL Cholesterol (LDLC) LDL Receptor Lead (Pb) Lead (Pb) Lead Acetate Lead Arsenate (PbHAsO4) Lead Compound Lead Drug (Active Ingredient) Lead Poisoning Lead Tetraacetate (Pb(C2H3O2)4 Leader (5' UTR) Leader Peptidase A (LepA) Leader Peptide Leader Peptide Gene Leader RNA Leader Sequence Leader Transcript Leading Strand (Leading End) Leaf Primordium Leaflet Leakage Gene  Leaky Gene (Hypomorph Leaky Genes Leaky Mutant Leaky Mutation Leaky Protein Lean Body Mass Lean Body Mass (LBM) Learned Behavior Least Square Approximation Least Squares Method Leavening Agent Lecithin Lecithin (2) Lecithin- Cholesterol Acyltransferase (LCAT) Lecithinase Lectin Lectins Lectins (2) Leech Left Handed Helix Legal Legal Medicine (Medical Jurisprudence) Legging End (Leading Strand) Legislation Leguemoglobin Leiomyoma Leishmaniasis Visceral- (VL) Lentiform Lentiform (2) Lentiviral Vectors Lentivirus Lentivirus (2) Leopard Seal LepA (Leader Peptidase A) Lepidoptera Leprechaunism (Donohue's Syndrome) Leprosy Leptin Leptin A Polypeptide Lepton Leptons Leptons Leptons (2) Leptotene Lesch-Nyhan Syndrome Lesion Lesion Bypass Lesion Network Map Lethal Concentration (LC) Lethal Dose Lethal Gene Lethal Mutation Lethal Synthesis Lethargy Leu (Leucine, L) Leucine- Rich Repeat Protein (LRR Protein) Leucine Transporter (LeuT) Leucine Zipper Proteins Leuco-, Leuko- Leucocidin (pore-forming microbial toxin) Leucocyte Leucocyte Interferon Leucopenic (Hypoleukocytic) Leucoplast Leucopterin leuk/o- (white, bright, light) Leukaemia Myeloid-   Leukaemia Virus Leukemia (Leukaemia) Leukocyte Leukocyte Associated Immunoglobulin-Like Receptor (LAIR-1) Leukocyte Immunoglobulin-Like Receptor (LIR-1) Leukocytes Leukocytosis Leukopenia Leukotriene Leukotriene Leukotriene (Leucotriene) Leukotriene A4 Hydrolase Leukotriene A4 Hydrolase Leukotriene B4 Hydroxy Dehydrogenase Leukotriene C4 Synthase Leukotrienes Level of Significance Lever Arm Levo- (L-) Levorotation (L-, l-, -)) Levorotator Levorotatory (l-) Levoversion (Levorotation) Levulose (Fructose) Levuroses (Levurosis) Lewis Acid Lewis Adduct Lewis Base Lewis Rat Lewis Structure (Lewis Dot Structure; Electron Dot Structure) Lewis Theory Lewisite Lewy Bodies Lewy Body Dementia (LBD) Leydig Cell Tumor Leydig Cell Tumor (Interstitial Cell Tumor) Leydig Cells (Interstitial Cells) LGBTQI (Lesbian, Gay, Bisexual, Transgender, Queer, and Intersex) L-Glutamic Acid (Glu) L-Glutamic Acid Dehydrogenase (GDH) L-Glutamic Acid Synthase L-Glutamine (Gln) LH (Luteinizing Hormone) L-Histidine (His) LHRH (Luteinizing Hormone Releasing Hormone) Li (Lithium) LibGen (Library Genesis) Search Engine Libido Library Library Library (Biological) Library Arrayed- Library Genesis (LibGen) Library, DNA- Licensing Factor Lichen Lichen Acids Lichen Acids (2) Lichen Chemistry Lichens Lichens Lichens Lichens (2) Lichens Biological Activities Lichens Products (Lichen Acids) Lieberkuhn Crypts Life Life Cycle (Reproductive Cycle) Life Expectency (LE) Life History Life Science Life Sciences Life Span Life Style Life Support System Ligament Ligand Ligand (2) Ligand (pl. Ligands) Ligand Gated Ion Channels (Ionotropic Receptors) Ligand, Radio- Ligase (Synthetase) Ligases (EC 6) Ligate (Ligated; Bond to) Ligation Ligation Reactions Ligature Light Light Absorption Light Adaptation Light Chain Light Chain (L) Light Chain Reaction (LCR) Light Chains (L Chains) Light Difraction Light Filter Light Grid Light Intensity Light Level Light Microscope Light Organ Light Pollution Light Quality Light Reaction Light Reactions Light Reactions Light Scattering Light Sheet Microscopy Light Spectrum Light Spectrum (Visible Spectrum) Light Speed Light Transmission Light Velocity (c) Light Year (LY) Light-Year (LY) (2) Lignans Lignin Lignin Peroxidase Lignocellulose Limb Limbic Limbic System Lime (Calcium Hydroxide) Limestone (CaCO3) Limnetic Species Limnetic Zone Limnology Limonene Limonin Limonin Linalyl Acetate Lindane (Gama-Hexane) Line Equation Lineage Lineage Analysis Lineage Dynamics Lineages Lineal Descendant Linear Equation Linear Polysaccharide Lineweaver-Burk Equation Lineweaver-Burk Plot Lineweaver-Burk Plot (Double Reciprocal Plot) Linguistic Anthropology Lining Lining Membrane Link Linkage Linkage Linkage Linkage Analysis Linkage Disequilibrium (LD) Linkage Disequilibrium (LD) Linkage Group Linkage Map Linkage Mapping   Linked Genes Linked Genes Linker Linker DNA Linker Histone Linking Clone Linking Number (LK) Linking Number (LK) Linking Number A Linnaeus Binomial Nomenclature System Linnaeus Binomial System Linoleic Acid Linoleic Acid (Omega 6 Fatty Acid) (C18H32O2) Linolenic Acid (Omega 3 Fatty Acid) (C18H30O2) Linseed Oil Linus Pauling Linus Pauling (1901-1994) Linus Pauling (1901-1994) (Scientist) Linus Pauling Institute Lipase Lipid (pl. Lipids) Lipid Bilayer Lipid Bilayer Membrane Lipid Bilayer Model Lipid Classification Lipid Linked Oligosaccharides (LLO) Lipid Metabolism Lipid Peroxidation Lipid Peroxidation (2) Lipid Profile Lipid Raft Lipidomic (Lipidome Analysis) Lipidomics Lipidosis Lipids Lipmann System Lipmann System Lipoblast Lipocalin Lipocyte (Fat Cell) Lipofuscin Lipogenesis Lipoic Acid (6, 8-Dithiooctanoic Acid) Lipoid Lipolysis (Adipolysis) Lipolytic Hormone (Adipokinetic Hormone) Lipoma Lipooxygenase Lipopeptide Lipopeptide Lipoperoxide Lipophilic (Hydrophobic) Lipophobic (Hydrophilic) Lipopolysaccharide (LPS) (2) Lipopolysaccharide (LPS) Lipopolysaccharides Endotoxins Lipoprotein Lipoprotein Electrophoresis Lipoprotein Lipase (LPL) Lipoproteins High Density- (HDL) Lipoproteins Low Density- (LDL) Lipoproteins Very Low Density- (VLDL) Liposarcoma Liposome Liposomes Lipoteichoic Acid (LTA) Lipotrophin Hormone (LPH) Lipotropic Drugs Lipotropic Hormone (Lipotropin) Lipotropin (Lipotropic Hormone) Lipoxidase (Lipoxygenase) Lipoxygenase Lipoxygenase (Lipoxidase) Lipoyl Dehydrogenase Liquefied Natural Gas (LNG) Liquefy Liquid Liquid Biopsy Liquid Chromatography (LC) Liquid Chromatography (LC) Liquid Chromatography-Mass Spectrometry (LC-MS) Liquid Crystals Liquid Nitrogen Liquid Scintillation Counter Liquify Liquorice (Glycyrrhiza) Listeria Listeria Infection Literature Literature Literature Review Lithium (li) Lithium (Li) Lithium (Li) Lithium Batteries Lithium Drugs Lithium Medical Uses Lithium Uses Litho- Lithocholic Acid Lithogenicc Lithophytes Lithosphere Lithosphere Lithotroph Litmus Litmus Litmus Paper Litmus Paper, Blue- Litmus Paper, Red- Litre (Liter; L) Live Live Birth Live Vaccine Live Virus Vaccine Livedo Livedoid Liver Liver Abscess Liver Bud Liver Cancer Liver Cell (Hepatocyte) Liver Cell Carcinoma (Hepatocellular Carcinoma ; HCC) Liver Cirrhosis Liver Extract Liver Function Test (LFT) Liverworts Living Living Drug Living Fossils Living Matter Living Organisms LK (Linking Number) L-Lactic Acid L-Leucine (Leu) Llipotropy Llupus L-Lysine (Lys) L-lysine Dehydrogenase L-Malate L-Methionine (Met) ln (Natural Log) ln (Natural Logarithm) (2) LncRNA (Long non-coding RNA ) LNF (Leucocyte Interferon) LNG (Liquefied Natural Gas ) Loam Lobe Local Mediator Local Toxicity Localize Loci (sing. Locus) lock Key Model Lock-Key Concept Locomotion Locus (pl. loci) Locus (pl. Luci) Locus Coeruleus Locus Control Region (LCR) Locust Locusta migratoria Locusts Aggregation Pheromone  LOD (Logarithm of the Odds) Score log (Common Logarithm) log (Logarithm) Log (Record) Log Common- Log Growth Phase (Exponential Log Phase) Log Natural- Logarithm (Log) Logarithm of the Odds Logarithmic Growth (Exponential Growth) Logarithmic Phase Logarithmic Spiral Logic Logical Log-Normal Distribution London Dispersion Forces Long Acting Insulin Long Arm Long COVID Long COVID Biomarkers Long COVID Gene Long Day Plant Long Interspersed Elements (LINEs) Long Non-Coding RNA (LncRNA) Long Range Restriction Mapping Long Term Exposure (Chronic Exposure) Long Terminal Repeat (LTR) Longitudinal Clinical Research Longitudinal cohort studies Longitudinal Cohort Studies Advantages Longitudinal Study Longitudinal Study (Longitudinal Survey; Panel Study) Longitudinal Survey Long-Range Restriction Mapping Long-Term Depression (LTD) Long-Term Potentiation (LTP) Loop Loop of Henle Lorentz Invariance Lorentz Transformations L-Ornithine (Orn) Loss of Heterozygosity Loss-of-Function Mutation (Null Mutation; Amorphic Mutation) Louis Pasteur (1822-1895) (Scientist) Lovastatin Lovibond Comparator Low Density Lipoprotein Cholesterol (LDLC) Low Density Lipoprotein (LDL) Low Dose Tolerance Low Risk Lowe's Disease (Oculocerebrorenal Syndrome) Lower Respiratory Tract Lowry Assay Lowry Method Lowry Protein Assay LPH (Lipotrophin) L-Phenylalanine (Phe) L-Proline (Pro) LPS (Lipopolysaccharide) L-Rhamnose Isomerase L-Rhamnose Isomerase LRR Protein (Leucine- Rich Repeat Protein) LRRK2 Kinase (Dardarin; PARK8) LSD (Lysergic Acid Diethylamide) LSD (C20H25N3O) LSD (Lysergic Aacid Diethylamide) L-Selectin (CD62) (Cell Adhesion Molecule) L-Serine (Ser) L-Sorbose L-Sterptose L-Tartaric Acid LTH (Luteotrophic Hormone; Prolactin) L-Threonine (Thr ) LTP (Long Term Potentiation) LTR (Long Terminal Repeat) L-Tryptophan (Trp) L-Tyrosine (Tyr) Lubricant Luciferase Luciferase- Luciferin Reagent Luciferin Luciferin Luciferinase Lucy (Australopithecus) Lucy Fossil (Australopithecus afarensis) Luetinizing Hormone Releasing Hormone (LHRH) Luffa Luft's disease (Hypermetabolic Disorder of Muscles) Lumber Lumen Lumen Lumen (pl. Lumina) Luminal (Apical) Luminar Luminescence Luminescence Luminescent Luminol Luminous Lump Lumphoid Organ Lunar Eclipse Lung Cancer Lung Cancer Lungs Lupine Lupus (Systemic) Lupus Erythematosus Lutein Lutein Luteinizing Hormone (LH) Luteinizing Hormone Rreleasing Hormone (LHRH) Luteotrophic Hormone (LTH; Prolactin; Luteotropin) Luteotropin (Luteotrophin) Lutetium (Lu) Lutien Lutropin (LH) Lux (lx) (unit of illuminance) Luxury Gene L-Valine (Val) Lyase Lyase Lyases (EC 4) Lycopene Lycopene Lyme Disease Lyme Disease (Lyme Borreliosis; Tick-Born Disease) Lymph Lymph- Lymph Cell (Lymphocyte) Lymph Embolism Lymph Node Lymph Nodes Lymph Nodes  Lymphadenopathy Associated Vitrus (LAV) Lymphatic System Lymphatic Tissues Lymphoblast Lymphoblastic Leukemia Lymphocyte (Lymph Cell) Lymphocyte Homing Receptors (Cell Adhesion Molecules) Lymphocyte, B- Cell- Lymphocyte, Cytotoxic- Lymphocyte, Helper- Lymphocyte, T- Lymphocytes Lymphocytes Lymphocytes (2) Lymphocytes Adaptive-  Lymphocytes Innate- Lymphocytes Transforming Factor Lymphocytic Leukemia Lymphoid Lymphoid Biased Stem Cells Lymphoid Follicle Lymphoid Leukemia Lymphoid Primed Progenitors Lymphokine Lymphokines Lymphoma Lymphoma Lymphoma, Hodgkin- Lymphoma, Non-Hodgkin- Lymphomagenesis Lyon Hypothesis Lyonization (X-Inactivation) Lyonization (X-Inactivation) Lyophilisation (Freeze Drying) Lyophilization Lyophilized Culture Lyophilyze Lyric Bacteriophages Lyric Virus Lys (Lysine, K) Lysate Lysate Lyse lyse- Lysed Bacteria Lysenko, Trofim Lysergamidesة Lysergic A cid Lysergic Aacid Diethylamide (LSD) Lysergide Lysine (Lys, K) Lysine K Acetyltransferase (KAT) Lysine Methylation Lysine-Specific Histone Demethylase (LSD) Lysis Lysis (Lysogenesis) Lyso Ketol Isomerase Lysogen Lysogen Lysogenesis Lysogenic Lysogenic Bacteria Lysogenic Bacteriophage Lysogenic Bacterium Lysogenic Cycle Lysogenic Facur Lysogenic Virus Lysogenicity Lysogeny Lysosomal Proteases Lysosome Lysosomes Lysosomes (2) Lysozyme Lysozyme 3D Structures Lytic Lytic Bacteria Lytic Bacteriophage Lytic Cycle (Lytic Pathway) Lytic Infection Lytic Particle Lytic Pathway (Lytic Cycle) Lytic Phage Lytic Virus Lytic Virus