(genetics, biochemistry) A nucleic acid found in all living things (and some non-living, see virus); consists of a polymer formed from nucleotides which are shaped into a double helix; it is associated with the transmission of genetic information.

(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.

(organic chemistry) Any of a class of organic compounds containing a carboxyl functional group.

(organic chemistry) 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.

(inorganic chemistry) An unstable, highly volatile, poisonous acid, HOCN, used to prepare cyanates; hydrolyzes in water to give ammonia and carbon dioxide

(chemistry) Any electrophylic compound that can accept a pair of electrons and form a coordinate covalent bond.

(chemistry) Iso-cyanic acid, HCNO, an unstable compound which forms explosive salts

(biochemistry) The acidic secretion of the stomach; mostly hydrochloric acid.

plural of acidity regulator

plural of acid anhydride