| AEROSPACE | • aerospace n. The atmosphere of the Earth and the region of space around it. • aerospace n. The industry concerned with aircraft, missiles, satellites and spacecraft. • aerospace adj. Of, or relating to the Earth’s atmosphere and nearby space. |
| AEROSPIKE | • aerospike n. Any of several forms of rocket engine having specialized nozzles. • aerospike n. A spike, protruding from the nose cone of a missile, designed to decrease supersonic drag. • AEROSPIKE n. a rocket engine with a specially designed nozzle that allows the exhaust gases to expand and so to be used most efficiently. |
| AEROSPACES | • aerospaces n. Plural of aerospace. • AEROSPACE n. the Earth's atmosphere and the space beyond it. |
| AEROSPHERE | • aerosphere n. (Rare) atmosphere. • AEROSPHERE n. the entire atmosphere surrounding the earth. |
| AEROSPIKES | • aerospikes n. Plural of aerospike. • AEROSPIKE n. a rocket engine with a specially designed nozzle that allows the exhaust gases to expand and so to be used most efficiently. |
| AEROSPHERES | • aerospheres n. Plural of aerosphere. • AEROSPHERE n. the entire atmosphere surrounding the earth. |
| 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. |
| HETEROSPORIES | • HETEROSPORY n. the production of microspores and megaspores, as in seed plants. |
| HETEROSPOROUS | • heterosporous adj. (Botany, of an organism) Producing both male and female gametophytes. • HETEROSPOROUS adj. producing two different sizes or kinds of spores. |
| HETEROSPECIFIC | • heterospecific adj. (Systematics) Of or belonging to a different species. • heterospecific n. An organism belonging to a different species to another. • HETEROSPECIFIC n. an organism of a different species or group. |
| HETEROSPECIFICS | • heterospecifics n. Plural of heterospecific. • HETEROSPECIFIC n. an organism of a different species or group. |