hydroxykynureninuria hy·drox·y·ky·nu·re·ni·nu·ri·a (hī-drŏk’sē-kī-nur’ə-nĭ-nur’ē-ə, -nyur’ə-nĭ-nyur’-)
An inherited abnormality in tryptophan metabolism believed to be due to a defect in kynureninase and characterized by mild mental retardation, migrainelike headaches, and urinary excretion of excessive amounts of kynurenine and xanthurenic acid.
[hahy-drok-suh l] /haɪˈdrɒk səl/ adjective 1. containing the . /haɪˈdrɒksɪl/ noun 1. (modifier) of, consisting of, or containing the monovalent group -OH or the ion OH–: a hydroxyl group or radical hydroxyl hy·drox·yl (hī-drŏk’sĭl) n. The univalent radical or group OH, a characteristic component of bases, certain acids, phenols, alcohols, carboxylic and sulfonic acids, and […]
[hahy-drok-suh-luh-meen, -suh l-am-in] /haɪˌdrɒk sə ləˈmin, -səlˈæm ɪn/ noun 1. an unstable, weakly basic, crystalline compound, NH 3 O, used as a reducing agent, analytical reagent, and chemical intermediate. /haɪˌdrɒksɪləˈmiːn; -ˈæmɪn; -ˈsaɪləˌmiːn/ noun 1. a colourless crystalline compound that explodes when heated: a reducing agent. Formula: NH2OH
[hahy-drok-suh-leys, -leyz] /haɪˈdrɒk səˌleɪs, -ˌleɪz/ noun, Biochemistry. 1. any enzyme that catalyzes the introduction of a into a substance. hydroxylase hy·drox·yl·ase (hī-drŏk’sə-lās’, -lāz’) n. Any of various enzymes that catalyze the formation of hydroxyl groups by oxidation of the substrate.
[hahy-drok-suh-leyt] /haɪˈdrɒk səˌleɪt/ verb (used with object), hydroxylated, hydroxylating. 1. to introduce hydroxyl into (a compound).