| ASCOSPORE | • ascospore n. (Biology) A sexually produced spore from the ascus of an Ascomycetes fungus. • ASCOSPORE n. one of the spores contained in the asci of lichens and fungi. |
| AUTOSPORE | • autospore n. An immobile spore that cannot develop flagella. • AUTOSPORE n. a nonmotile algal spore. |
| AUXOSPORE | • auxospore n. (Biology) A reproductive spore in diatoms that is formed by the union of two cells. • AUXOSPORE n. a diatom cell before its siliceous wall is formed. |
| DIASPORES | • diaspores n. Plural of diaspore. • DIASPORE n. a hydrate of alumina, often occurring in white lamellar masses with brilliant pearly lustre. |
| ENDOSPORE | • endospore n. The inner layer of a spore. • endospore n. A small vegetative spore produced by some bacteria. • ENDOSPORE n. the thin inner coat of certain spores. |
| EPISPORES | • epispores n. Plural of epispore. • EPISPORE n. the outer layer of a spore wall, also EXOSPORE. |
| EXOSPORES | • exospores n. Plural of exospore. • EXOSPORE n. the outer covering of a spore. |
| MEGASPORE | • megaspore n. (Botany) The larger spore of a heterosporous plant, typically producing a female gametophyte. • MEGASPORE n. the larger of the two types of spore produced by some ferns, which develops into the female gametophyte. |
| MEIOSPORE | • meiospore n. A haploid spore produced by meiosis. • MEIOSPORE n. a haploid spore. |
| SPORELIKE | • sporelike adj. Resembling or characteristic of a spore. • SPORELIKE adj. like a spore. |
| ZOOSPORES | • zoospores n. Plural of zoospore. • zoöspores n. Plural of zoöspore. • ZOOSPORE n. a motile flagellated spore, occurring in certain algae, fungi, and protozoans. |
| ZYGOSPORE | • zygospore n. (Botany) A zygosperm. • zygospore n. (Botany) A spore formed by the union of several zoospores. • ZYGOSPORE n. a spore formed by union of two similar cells, also ZYGOSPERM. |