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Glossary of Biochemistry Terms
beginning with letter L
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L Tweet Definition of L Like Definition of L on Facebook
noun
  1. (sports) The statistic for the number of losses by a team or player limited by some criteria (e.g. this season, at home, on turf)
  1. (alternative spelling of, el (elevated train))
    • 1925 February 21, "Co-operation" (cartoon), w:The New Yorker, The New Yorker, page 2,
    • :PLEASE! HELP US KEEP THE "" AND SUBWAY CLEAN
lactase Tweet Definition of lactase Like Definition of lactase on Facebook
noun
  1. A β-galactosidase enzyme that is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers.
category:Enzymes      
lactic acid Tweet Definition of lactic acid Like Definition of lactic acid on Facebook
noun
  1. (organic compound) 2-hydroxy-propanoic acid (CH3.CHOH.CO2H), a syrupy liquid, soluble in water; found in milk, wine and many fruits; used as a food additive and in many industrial applications.
lactoflavin Tweet Definition of lactoflavin Like Definition of lactoflavin on Facebook
noun
  1. (vitamin) A former name of riboflavin.
lactose Tweet Definition of lactose Like Definition of lactose on Facebook
noun
  1. (carbohydrate) The disaccharide sugar of milk and milk products, C12H22O11, used as a food and in medicinal compounds.
LDL Tweet Definition of LDL Like Definition of LDL on Facebook
initialism (wikipedia, Low density lipoprotein)
  1. Low-Density Lipoproteins
  2. (navigation) limiting danger lines
lecithin Tweet Definition of lecithin Like Definition of lecithin on Facebook
noun
  1. the principal phospholipid in animals; it is particularly abundant in egg yolks, and is extracted commercially from soy. It is a major constituent of cell membranes, and is commonly used as a food additive (as an emulsifier).
leu Tweet Definition of leu Like Definition of leu on Facebook
noun (plurallei)
  1. The unit of currency of Romania, equal to one-hundred bani.
leucine Tweet Definition of leucine Like Definition of leucine on Facebook
noun
  1. (amino acid) An essential amino acid, C6H13NO2, isomeric with isoleucine, found in most animal proteins; it is essential for growth in children.
LHRH Tweet Definition of LHRH Like Definition of LHRH on Facebook
initialism
  1. Luteinizing Hormone-Releasing Hormone
ligand Tweet Definition of ligand Like Definition of ligand on Facebook
noun
  1. (chemistry) An ion, molecule, or functional group that binds to another chemical entity to form a larger complex.
lipase Tweet Definition of lipase Like Definition of lipase on Facebook
noun
  1. Any of a group of enzymes which catalyses the hydrolysis of lipids.
category:Enzymes      
lipid Tweet Definition of lipid Like Definition of lipid on Facebook
noun
  1. (chemistry) Any of a group of organic compounds including the fats, oils, waxes, sterols, nucleic acids, and triglycerides. Lipids are characterized by being insoluble in water, and account for most of the fat present in the human body. They are, however, soluble in nonpolar organic solvents.
lipoid Tweet Definition of lipoid Like Definition of lipoid on Facebook
adjective
  1. pertaining to fat
  • 1984: She advertised the virtues of what he had heard called junkfood, presumably food for junkies, whom, living in Tangiers, he knew all about. " Anthony Burgess, Enderby's Dark Lady
lipoprotein Tweet Definition of lipoprotein Like Definition of lipoprotein on Facebook
nounlipopotein
  1. any of a large group of complexes of protein and lipid with many biochemical functions
lipotropic Tweet Definition of lipotropic Like Definition of lipotropic on Facebook
adjective
  1. having an affinity for lipids
  1. (biochemistry) helping to metabolize lipids
low-density lipoprotein Tweet Definition of low-density lipoprotein Like Definition of low-density lipoprotein on Facebook
noun
  1. a class of lipoprotein that transports cholesterol around the bloodstream; high levels may increase the risk of coronary heart disease
lutein Tweet Definition of lutein Like Definition of lutein on Facebook
noun
  1. (organic compound) A yellow carotenoid pigment, widely distributed in both plants and animals.
lycopene Tweet Definition of lycopene Like Definition of lycopene on Facebook
noun
  1. (organic compound) A red carotenoid pigment found in tomatoes, other red vegetables, and in animal tissue; there is some evidence that it may lower the risk of prostate cancer.
lysine Tweet Definition of lysine Like Definition of lysine on Facebook
noun
  1. (amino acid) An essential amino acid C6H14N2O2 found in most animal proteins; essential for growth especially in children.
lysozyme Tweet Definition of lysozyme Like Definition of lysozyme on Facebook
noun
  1. (biochemistry) A bacteriolytic (or antibiotic) enzyme found in many animal secretions, and in egg white.

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