Definify.com

Webster 1913 Edition

Noun.

[

Zoo-

cyst

(Biol.)

A cyst formed by certain Protozoa and unicellular plants which the contents divide into a large number of granules, each of which becomes a germ.

See also: zoocyst

zoöcyst ‎(plural zoöcysts)

(biology) A cyst formed by certain Protozoa and unicellular plants which the contents divide into a large number of granules, each of which becomes a germ.