(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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Rhizostomata. Retrieved September 28, 2026, from http://smartdefine.org/rhizostomata/definitions/2055812 |
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| MLA | Webster's. "Rhizostomata" 28 May 2011. Web. 28 September 2026. <http://smartdefine.org/rhizostomata/definitions/2055812> |