rhizostomata Meaning, Definition & Usage

Rhi`zo*stom"a*ta noun plural

Etymology

NL., fr. Gr. a root + , , a mouth.

Definitions

1. (Zoöl.) A suborder of Medusæ which includes very large species without marginal tentacles, but having large mouth lobes closely united at the edges. See Illust. in Appendix.