A spore or spore-granule. In Botany.

a motile spore or single-celled organism, esp. a zoospore.

A motile flagellate spore, as produced by certain algae, fungi, and protozoans. Cf. zoosperm, n. 2.

A portion of a plant, fungus, etc., that is capable, when detached, of giving rise to a new individual by asexual or sexual reproduction (e.g. a leaf…

a zoospore formed by conjugation; a motile zygospore.

= swarm-spore n. (a).

A spore produced in a sporangium.

A motile spore, a zoospore.

A motile spore, gamete, or zygote; esp. the motile stage of certain microsporidian protozoans or phycomycetes.