| DISHARMONIOUSLY | • disharmoniously adv. In a disharmonious manner. • DISHARMONIOUS adv. lacking in harmony. |
| DISHONOURABLY | • dishonourably adv. (Britain) Alternative spelling of dishonorably. • DISHONOURABLE adv. not honourable, also DISHONORABLE. |
| HORRENDOUSLY | • horrendously adv. In a horrendous manner. • HORRENDOUS adv. fearful; frightful. |
| HYDROGENOUS | • hydrogenous adj. Of, related to, or containing hydrogen. • HYDROGENOUS adj. containing hydrogen. |
| HYDROPHANOUS | • hydrophanous adj. (Mineralogy) Made transparent by immersion in water. • HYDROPHANOUS adj. becoming transparent when placed in water. |
| HYDROQUINOL | • HYDROQUINOL n. a white crystalline soluble phenol used as a photographic developer. |
| HYDROQUINOLS | • HYDROQUINOL n. a white crystalline soluble phenol used as a photographic developer. |
| HYDROQUINONE | • hydroquinone n. (Organic chemistry) The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic… • HYDROQUINONE n. another name for quinol. |
| HYDROQUINONES | • hydroquinones n. Plural of hydroquinone. • HYDROQUINONE n. another name for quinol. |
| 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. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| HYPERPRODUCTION | • hyperproduction n. Excessive production. • HYPERPRODUCTION n. excessive production. |
| HYPOCHONDRIUM | • hypochondrium n. (Anatomy) The upper region of the abdomen, below the lower ribs, each side of the epigastrium. • HYPOCHONDRIUM n. either of two regions of the upper part of the abdomen. |
| ODONTORHYNCHOUS | • ODONTORHYNCHOUS adj. of birds, having toothlike ridges inside the beak. |
| QUADROPHONY | • QUADROPHONY n. a system of sound transmission using four speakers, also QUADRAPHONICS, QUADRAPHONY, QUADRIPHONICS, QUADROPHONICS. |
| UNORTHODOXLY | • unorthodoxly adv. In an unorthodox manner, unconventionally. • UNORTHODOX adv. not orthodox. |
| UNORTHODOXY | • unorthodoxy n. Lack of orthodoxy; the quality or state of being unorthodox. • UNORTHODOXY n. the state of being unorthodox. |
| UNROADWORTHY | • unroadworthy adj. Describing a vehicle which is not safe for use on the road. • UNROADWORTHY adj. not roadworthy. |