Webster’s Revised Unabridged Dictionary · 1913
Swarmspore
Swarm′spore′ (swa̤rm′spōr′), n. 1. (Bot.) One of innumerable minute, motile, reproductive bodies, produced asexually by certain algæ and fungi; a zoöspore.
2. (Zoöl.) One of the minute flagellate germs produced by the sporulation of a protozoan; — called also zoöspore.