Zoospore n. : 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.

Zoospore n. : See Swarmspore.

Example:
which of these processes happens in conjugation of the plant spirogyra and the meaning?

Taxonomy
Zoospore, whiplash, flagella, tinsel, zoospores, free encyclopedia, algae, Kingdom Fungi, Flagellum, Zoosporangium, flagellated, Chytridiomycota, Chromista, Fungus, beat, heterokont, phyla, Gametangium.

Defination from the web:
zoospores, tinsel or "decorated", and whiplash. ... straight, to power the zoospore through its medium. There is also the 'default' zoospore, which only has the propelling, ... Oomycetes and heterokont algae produce distinct bi-flagellated zoospores: ...