Bible Dictionaries
Rhizostomata

Webster's Dictionary

(n. pl.) 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.

Bibliography Information
Webster, Noah. Entry for 'Rhizostomata'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​r/rhizostomata.html. 1828.