| ANIDROSES | • ANIDROSIS n. absence of sweating, also ANHIDROSIS. |
| ANIDROSIS | • anidrosis n. (Pathology) An inability to tolerate heat, typically as a result of reduced sweating. • ANIDROSIS n. absence of sweating, also ANHIDROSIS. |
| DROSHKIES | • droshkies n. Plural of droshky. • DROSHKY n. (Russian) an open carriage, also DROSKY. |
| DROSSIEST | • drossiest adj. Superlative form of drossy: most drossy. • DROSSY adj. worthless. |
| DROSTDIES | • drostdies n. Plural of drostdy. • DROSTDY n. (South African) a type of South African house. |
| HADROSAUR | • hadrosaur n. (Paleontology) Any ornithopod dinosaur of the family Hadrosauridae. • HADROSAUR n. a bird-hipped dinosaur of the Cretaceous. |
| HYDROSERE | • hydrosere n. A plant succession in which an open freshwater naturally dries out, gradually becoming swamp, marsh… • HYDROSERE n. an ecological sere originating in an aquatic habitat. |
| HYDROSKIS | • hydroskis n. Plural of hydroski. • HYDROSKI n. a plate attached to a seaplane to facilitate takeoff and landings. |
| HYDROSOLS | • hydrosols n. Plural of hydrosol. • HYDROSOL n. an aqueous solution of a colloid. |
| HYDROSOMA | • hydrosoma n. (Biology) The entire organism of any hydrozoon. • HYDROSOMA n. all the zooids of a hydroid colony collectively, also HYDROSOME. |
| HYDROSOME | • hydrosome n. (Biology) A colony of hydrozoans considered as a single organism. • HYDROSOME n. all the zooids of a hydroid colony collectively, also HYDROSOMA. |
| HYDROSTAT | • hydrostat n. A mechanism that regulates the amount of water in a boiler. • hydrostat n. (Biology) A muscle tissue, composed mostly of water, that maintains a constant volume during contraction. • HYDROSTAT n. a contrivance or apparatus to prevent the explosion of steam boilers. |
| LANDDROST | • landdrost n. (Now historical) A type of magistrate in South Africa, abolished under the British in 1827. • LANDDROST n. (South African) in South Africa, a district magistrate or sheriff, also LANDDROS. |