| PLOUGHHEADS | • ploughheads n. Plural of ploughhead. • PLOUGHHEAD n. the draught iron of a plough, also PLOWHEAD. |
| 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. |
| HYDROCEPHALUS | • hydrocephalus n. (Medicine) A usually congenital condition in which an abnormal accumulation of fluid in the cerebral… • HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY. |
| HYDROSULPHATE | • hydrosulphate n. Alternative form of hydrosulfate. • HYDROSULPHATE n. any quaternary acid salt formed by addition of an organic base to sulphuric acid, such as aniline hydrosulphate. |
| HYDROSULPHIDE | • hydrosulphide n. (Britain) Alternative spelling of hydrosulfide. • HYDROSULPHIDE n. a compound formed by action of hydrogen sulphide on a hydroxide. |
| HYDROSULPHITE | • hydrosulphite n. Alternative spelling of hydrosulfite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent. |
| HYDROCEPHALOUS | • hydrocephalous adj. Having a swollen head. • hydrocephalous adj. (Medicine) Afflicted with hydrocephalus. • HYDROCEPHALOUS adj. suffering from hydrocephaly, also HYDROCEPHALIC. |
| HYDROSULPHATES | • hydrosulphates n. Plural of hydrosulphate. • HYDROSULPHATE n. any quaternary acid salt formed by addition of an organic base to sulphuric acid, such as aniline hydrosulphate. |
| HYDROSULPHIDES | • hydrosulphides n. Plural of hydrosulphide. • HYDROSULPHIDE n. a compound formed by action of hydrogen sulphide on a hydroxide. |
| HYDROSULPHITES | • hydrosulphites n. Plural of hydrosulphite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent. |
| HYDROSULPHURIC | • hydrosulphuric adj. Alternative spelling of hydrosulfuric. • HYDROSULPHURIC adj. formed by a combination of hydrogen and sulphur. |
| PODOPHTHALMOUS | • podophthalmous adj. (Zoology) Having the eyes on movable footstalks, or pedicels. • podophthalmous adj. (Zoology) Of or relating to the Podophthalmia. • PODOPHTHALMOUS adj. having eyes on stalks, like some crabs. |
| EDRIOPHTHALMOUS | • edriophthalmous adj. (Zoology) Pertaining to the Edriophthalma, a former classification of peracarids. • EDRIOPHTHALMOUS adj. of crustaceans, with stalkless eyes, also EDRIOPHTHALMIAN, EDRIOPHTHALMIC. |
| HOUSEHOLDERSHIP | • householdership n. The position or role of a householder. • HOUSEHOLDERSHIP n. the office of householder. |
| HYDROCEPHALUSES | • hydrocephaluses n. Plural of hydrocephalus. • HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY. |
| HYDROSULPHUROUS | • HYDROSULPHUROUS adj. as in hydrosulphurous acid. |
| ORNITHODELPHOUS | • ORNITHODELPHOUS adj. of or like the Ornithodelphia, monotremes, also ORNITHODELPHIAN, ORNITHODELPHIC. |