| AEROSPHERES | • aerospheres n. Plural of aerosphere. • AEROSPHERE n. the entire atmosphere surrounding the earth. |
| ANDROSPHINX | • androsphinx n. A sphinx with the head of a man. • ANDROSPHINX n. a sphinx having the head of a man. |
| ARTHROSPORE | • arthrospore n. A sporelike cell produced by some fungi and algae. • arthrospore n. A similar cell produced by some bacteria. • ARTHROSPORE n. another name for an oidium. |
| ASTROSPHERE | • astrosphere n. A cavity filled with hot gas blown into the interstellar medium by stellar winds. • ASTROSPHERE n. another name for a centrosome. |
| BIOPROSPECT | • bioprospect v. To search for natural products that might have a commercial application. |
| HETEROSPORY | • heterospory n. (Botany) The production of spores of two different sizes and sexes by the sporophytes of land plants. • HETEROSPORY n. the production of microspores and megaspores, as in seed plants. |
| HYDROSPACES | • hydrospaces n. Plural of hydrospace. • HYDROSPACE n. the regions beneath the oceans' surface. |
| HYDROSPHERE | • hydrosphere n. All the liquid waters of the Earth, as distinguished from the land and the gases of the atmosphere. • HYDROSPHERE n. the water of the earth. |
| INTROSPECTS | • introspects v. Third-person singular simple present indicative form of introspect. • INTROSPECT v. to look inwards. |
| MACROSPORES | • macrospores n. Plural of macrospore. • MACROSPORE n. a spore giving rise to a female gametophyte. |
| MICROSPHERE | • microsphere n. Any sphere whose size is measured in micrometres. • MICROSPHERE n. a small sphere. |
| MICROSPORES | • microspores n. Plural of microspore. • MICROSPORE n. a spore giving rise to a male gametophyte. |
| MICROSPORIC | • microsporic adj. (Botany) Of or pertaining to microspores. • MICROSPORIC adj. like a microspore, also MICROSPOROUS. |
| NEUROSPORAS | • NEUROSPORA n. any of a genus of ascomycetous fungi, used extensively in genetic research. |
| PROSPECTING | • prospecting v. Present participle of prospect. • prospecting n. The act of one who prospects. • PROSPECTING n. exploring for mineral deposits. |
| PROSPECTION | • prospection n. (Uncommon) The action of looking forward into the future. Formed by analogy with retrospection. • prospection n. (Uncommon) The act of prospecting for minerals. • prospection n. A search for archaeological remains, usually using modern technology, for example ground penetrating radar. |
| PROSPECTIVE | • prospective adj. Likely or expected to happen or become. • prospective adj. Anticipated in the near or far future. • prospective adj. Of or relating to a prospect; furnishing a prospect. |
| PROSPECTORS | • prospectors n. Plural of prospector. • PROSPECTOR n. one who prospects. |
| RETROSPECTS | • retrospects n. Plural of retrospect. • retrospects v. Third-person singular simple present indicative form of retrospect. • RETROSPECT v. to engage in retrospection. |