| ALLOCHTHON | • allochthon n. (Geology) A geological formation not formed in the region where found and moved to its present location… |
| HALOTHANES | • halothanes n. Plural of halothane. • HALOTHANE n. an inhalation anaesthetic. |
| HATCHELING | • hatcheling v. Present participle of hatchel. • HATCHEL v. to separate flax fibres with a comb, also HACKLE, HECKLE. |
| HATCHLINGS | • hatchlings n. Plural of hatchling. • HATCHLING n. a creature just hatched. |
| HEATHLANDS | • heathlands n. Plural of heathland. • HEATHLAND n. barren open country, esp. covered with ericaceous and other low shrubs. |
| HELIANTHUS | • helianthus n. Any plant, of the genus Helianthus, having large flower heads with dark disk florets and showy yellow… • Helianthus prop.n. A taxonomic genus within the family Asteraceae – the sunflowers. • HELIANTHUS n. any plant of the genus Helianthus, such as the sunflower and Jerusalem artichoke. |
| HELMINTHIC | • helminthic adj. Of or pertaining to worms; used especially of parasitic worms. • helminthic adj. (Medicine) Causing the expulsion of intestinal worms. • helminthic n. (Medicine) Any medicine that expels intestinal worms. |
| HEPTATHLON | • heptathlon n. (Athletics) An athletic contest comprising seven events; contested mostly by women, for whom this is an Olympic sport. • HEPTATHLON n. an athletic competition with seven events. |
| HEXATHLONS | • HEXATHLON n. an athletic contest comprising six events. |
| HYPANTHIAL | • HYPANTHIAL adj. of or like a hypanthium. |
| LITHOPHANE | • lithophane n. A style of European porcelain in which the figures are seen by transmitted light. • Lithophane prop.n. A taxonomic genus within the family Noctuidae – certain moths. • LITHOPHANE n. porcelain with pictures showing through transparency. |
| NAPHTHALIC | • naphthalic adj. Of, pertaining to, yielding, or derived from naphthalene. • NAPHTHALIC adj. as in naphthalic acid, an acid derived from naphthalene. |
| NAPHTHALIN | • naphthalin n. Naphthalene. • NAPHTHALIN n. a white crystalline volatile solid with a characteristic penetrating odour, an aromatic hydrocarbon, also NAPHTHALINE. |
| NIGHTLIGHT | • nightlight n. A small, dim light or lamp left on overnight. • nightlight n. Light that shines at night such as moonlight, starlight, etc. • night␣light n. Alternative spelling of nightlight. |
| PHTHALEINS | • phthaleins n. Plural of phthalein. • PHTHALEIN n. any one of a very important class of dye-yielding materials formed by the union of phenols with phthalic anhydride. |
| RHINOLITHS | • rhinoliths n. Plural of rhinolith. • RHINOLITH n. a concretion formed within the cavities of the nose. |
| UNWITHHELD | • unwithheld adj. Not withheld. • UNWITHHELD adj. not withheld, also UNWITHHOLDEN. |
| WITHHOLDEN | • withholden v. (Rare, archaic) past participle of withhold. • WITHHOLD v. to hold back. |
| XANTHOPHYL | • xanthophyl n. Dated form of xanthophyll. • XANTHOPHYL n. a yellow carotenoid pigment found with chlorophyll in green plants and in egg yolks, also XANTHOPHYLL. |