Zoospore /(?)/

Zo·o·spore

Zoospore

n.
  1. A spore provided with one or more slender cilia, by the vibration of which it swims in the water. Zoospores are produced by many green, and by some olive-brown, algae. In certain species they are divided into the larger macrozoospores and the smaller microzoospores. Called also sporozoid, and swarmspore. (Bot.)
  2. See Swarmspore. (Zool.)