Rhi`zo*stom"a*ta (?), n.pl. [NL., fr. Gr. a root + , , a mouth.] Zool.

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

 

© Webster 1913.

Log in or registerto write something here or to contact authors.