| HYDROXONIUM | • hydroxonium n. (Chemistry) The cation obtained by reacting a proton with water - H3O+; hydronium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| HYDROXYZINE | • hydroxyzine n. (Pharmacology) A first-generation antihistamine of the piperazine class, used as an antihistamine, antiemetic… • HYDROXYZINE n. a compound used as an antihistamine and tranquilizer. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| HYDROXYZINES | • hydroxyzines n. Plural of hydroxyzine. • HYDROXYZINE n. a compound used as an antihistamine and tranquilizer. |
| HYDROXYLAMINE | • hydroxylamine n. (Inorganic chemistry) An explosive inorganic derivative of ammonia, NH2OH, used as a reducing agent… • hydroxylamine n. (Organic chemistry) Any organic derivative of this compound. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| HYDROXYLATING | • hydroxylating v. Present participle of hydroxylate. • HYDROXYLATE v. to introduce hydroxyl into. |
| HYDROXYLATION | • hydroxylation n. (Organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement… • HYDROXYLATION n. the act of hydroxylating. |
| HYDROXYLAMINES | • hydroxylamines n. Plural of hydroxylamine. • HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions. |
| HYDROXYLATIONS | • hydroxylations n. Plural of hydroxylation. • HYDROXYLATION n. the act of hydroxylating. |
| HYDROXYPROLINE | • hydroxyproline n. (Biochemistry) A hydroxy derivative of the amino acid proline found in the structural proteins of connective tissue. • HYDROXYPROLINE n. an amino acid. |
| HYPEREXTENDING | • hyperextending v. Present participle of hyperextend. • HYPEREXTEND v. to extend so that the angle between bones of a joint is greater than normal. |
| HYPOMIXOLYDIAN | • hypomixolydian adj. (Music) Describing a mode of church music represented by a major scale from D to G. • HYPOMIXOLYDIAN adj. applied in old church music to a mode extending from d to d with g as its final. |
| HYDROXYPROLINES | • hydroxyprolines n. Plural of hydroxyproline. • HYDROXYPROLINE n. an amino acid. |