an organic acid containing both a carboxyl and a hydroxyl group.
any of a class of organic acids containing a hydroxyl group and showing properties of both an alcohol and an acid.
any acid, such as sulphuric acid, containing hydroxyl groups in its molecules
any of a class of carboxylic acids that contain both a hydroxyl group and a carboxyl group in their molecules
[hahy-drok-see-ap-uh-tahyt] /haɪˌdrɒk siˈæp əˌtaɪt/ noun 1. a mineral, Ca 10 (PO 4) 6 OH 2 , that is the principal storage form of calcium and phosphorus in bone. hydroxyapatite hy·drox·y·ap·a·tite (hī-drŏk’sē-āp’ə-tīt’) n. The principal bone salt that provides the compressional strength of vertebrate bone.
[hahy-drok-si-ben-zeen, -ben-zeen] /haɪˌdrɒk sɪˈbɛn zin, -bɛnˈzin/ noun 1. (def 1).
[hahy-drok-see-byoo-tir-ik, -drok-] /haɪˈdrɒk si byuˈtɪr ɪk, -ˌdrɒk-/ noun, Biochemistry. 1. .
[hahy-drok-si-klawr-uh-kween, -kwin, -klohr-] /haɪˌdrɒk sɪˈklɔr əˌkwin, -kwɪn, -ˈkloʊr-/ noun, Pharmacology. 1. a colorless crystalline solid, C 18 H 26 ClN 3 O, used in the treatment of malaria, lupus erythematosus, and rheumatoid arthritis.