| HYDROQUINOL | • HYDROQUINOL n. a white crystalline soluble phenol used as a photographic developer. |
| 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. |
| HYDROFLUORIC | • hydrofluoric adj. (Chemistry) Containing hydrogen and fluorine. • HYDROFLUORIC adj. as in hydrofluoric acid, a strong acid used for etching glass. |
| HYDROPHILOUS | • hydrophilous adj. (Biology) That grows or thrives in or near water. • hydrophilous adj. (Botany) That is pollinated by water. • HYDROPHILOUS adj. water-loving; pollinated by agency of water. |
| 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. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| DISHONOURABLY | • dishonourably adv. (Britain) Alternative spelling of dishonorably. • DISHONOURABLE adv. not honourable, also DISHONORABLE. |
| HYDROMEDUSOID | • HYDROMEDUSOID n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSAN. |
| HYDROQUINONES | • hydroquinones n. Plural of hydroquinone. • HYDROQUINONE n. another name for quinol. |
| 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. |
| HYDROACOUSTICS | • hydroacoustics n. Any of various sciences and technologies dealing with sound transmitted through water. • HYDROACOUSTICS n. the study of sound travelling through water. |
| HYDROMEDUSOIDS | • HYDROMEDUSOID n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSAN. |
| PTERIDOPHYTOUS | • PTERIDOPHYTOUS adj. of or like a pteridophyte, a fern, also PTERIDOPHYTIC. |
| AUTORADIOGRAPHY | • autoradiography n. The process of making autoradiographs. • AUTORADIOGRAPHY n. a technique used to show the distribution of radioactively labelled molecules in cells or tissues. |
| DISHARMONIOUSLY | • disharmoniously adv. In a disharmonious manner. • DISHARMONIOUS adv. lacking in harmony. |
| HYPERPRODUCTION | • hyperproduction n. Excessive production. • HYPERPRODUCTION n. excessive production. |
| ICHTHYODORULITE | • ichthyodorulite n. (Zoology) One of the spiny plates found on the back and tail of certain skates. • ichthyodorulite n. (Geology) A fossil fish-spine found in stratified rock. • ICHTHYODORULITE n. a fossilised fish-spine, also ICHTHYODORYLITE. |
| RADIOAUTOGRAPHY | • radioautography n. Autoradiography. • RADIOAUTOGRAPHY n. the use of radioautographs. |