'Cyclostoma' definitions:

Definition of 'Cyclostoma'

From: GCIDE

Cyclostomata \Cy`clo*stom"a*ta\ (s?`kl?-st?m"?-t?), Cyclostoma \Cy*clos"to*ma\ (s?-kl?s"t?-m?), n. pl. [NL., fr. Gr. ky`klos circle + sto`ma, -atos mouth.] (Zool.) A division of Bryozoa, in which the cells have circular apertures. [1913 Webster] Cyclostome