(organic chemistry, biochemistry) A yellowish organic keto acid, 2-oxopropanoic acid, which occurs as an intermediate in many metabolic processes, especially glycolysis.

(biochemistry) A derivative of DNA having ribose in place of deoxyribose, and uracil in place of thymine; its primary function is in the transcription of genetic material and subsequent synthesis of protein.

(organic chemistry) Any organic compound containing both an amino and a carboxylic acid functional group.

(chemistry) Any of a class of aliphatic carboxylic acids, of general formula CₙH₂ₙ₊₁COOH, that occur combined with glycerol as animal or vegetable oils and fats. Only those with an even number of carbon atoms are normally found in natural fats.

(inorganic chemistry) A poisonous, white crystalline compound, H₃AsO₄, formed from arsenic pentoxide and water; it has the same structure as phosphoric acid, and is used in the manufacture of arsenates.

(dated, organic chemistry) phenol (C₆H₅OH)

any of the steroid acids produced by the liver, such as cholic acid, that occur in bile as sodium salts and serve to neutralize the contents of the stomach as they enter the duodenum and to aid the emulsification and absorption of fats

(chemistry) H₃BO₃; B(OH)₃; a white crystalline solid, soluble in hot water to form a weak acid. Used as a mild antiseptic, flame retardant, insecticide, and in the manufacture of borax and other borate salts.

A weak unstable acid, H₂CO₃, known only in solution, and as carbonate salts; it is present in carbonated drinks, and sparkling wine, but decomposes to form carbon dioxide and water.

(biochemistry, organic chemistry) An organic compound, one of the gibberellins, obtained from the fungus Gibberella fujikuroi, that functions as a growth hormone in plants.