Definition of Rhizostomae
: an order of Scyphozoa comprising jellyfishes that are related to the Semaeostomeae but are distinguished from them by fused oral lobes, by numerous small mouths replacing the primary mouth, and by the absence of tentacles and including various large jellyfishes that are dried and used as food in China and Japan
rhizostomatous\¦rīzə¦stōmətəs, -täm-\ adjective
rhizostome\ˈrīzəˌstōm\ noun, plural
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Origin and Etymology of rhizostomae
New Latin, from Rhizostoma, genus of jellyfishes, from rhiz- + -stoma
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