| DISTRAUGHTLY | • distraughtly adv. In a distraught manner. • DISTRAUGHT adv. agitated with doubt or mental conflict or pain. |
| FURALDEHYDES | • FURALDEHYDE n. either of two aldehydes derived from furan. |
| HORRENDOUSLY | • horrendously adv. In a horrendous manner. • HORRENDOUS adv. fearful; frightful. |
| HYDRARGYRUMS | • HYDRARGYRUM n. an obsolete name for mercury. |
| HYDROMEDUSAE | • hydromedusae n. Plural of hydromedusa. • HYDROMEDUSA n. a hydrozoan in its medusoid stage, also HYDROMEDUSAN, HYDROMEDUSOID. |
| HYDROMEDUSAN | • hydromedusan adj. (Zoology) Relating to the hydromedusas. • HYDROMEDUSAN n. a hydromedusa, also HYDROMEDUSA, HYDROMEDUSOID. |
| HYDROMEDUSAS | • hydromedusas n. Plural of hydromedusa. • HYDROMEDUSA n. a hydrozoan in its medusoid stage, also HYDROMEDUSAN, HYDROMEDUSOID. |
| HYDROPHANOUS | • hydrophanous adj. (Mineralogy) Made transparent by immersion in water. • HYDROPHANOUS adj. becoming transparent when placed in water. |
| 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. |
| HYDROPHOBOUS | • hydrophobous adj. Hydrophobic. • HYDROPHOBOUS adj. (obsolete) water-repellent. |
| HYDROPHYTOUS | • hydrophytous adj. Relating to hydrophytes. • hydrophytous adj. Relating to hydrophytons. • HYDROPHYTOUS adj. like a hydrophyte, also HYDROPHYTIC. |
| HYDROQUINOLS | • HYDROQUINOL n. a white crystalline soluble phenol used as a photographic developer. |
| HYDROXONIUMS | • hydroxoniums n. Plural of hydroxonium. • HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water. |
| HYDROXYUREAS | • hydroxyureas n. Plural of hydroxyurea. • HYDROXYUREA n. a drug used to treat some forms of leukemia, melanoma, and malignant tumors. |
| PACHYDERMOUS | • PACHYDERMOUS adj. thick-skinned, also PACHYDERMATOUS. |
| PSEUDOGRAPHY | • pseudography n. False writing; forgery. • pseudography n. Incorrect spelling. • PSEUDOGRAPHY n. unsatisfactory spelling. |
| SHUDDERINGLY | • shudderingly adv. With a shuddering motion. • SHUDDERING adv. trembling. |
| SULPHHYDRYLS | • sulphhydryls n. Plural of sulphhydryl. • SULPHHYDRYL n. a chemical group, SH, characteristic of sulphur-containing compounds, also SULFHYDRYL. |
| THUNDEROUSLY | • thunderously adv. In a thunderous manner, very loudly. • THUNDEROUS adv. sounding like thunder, also THUNDROUS. |
| UNHYDROLYSED | • unhydrolysed adj. Alternative spelling of unhydrolyzed. • UNHYDROLYSED adj. not hydrolysed, also UNHYDROLYZED. |