Rhizostomae

plural noun

Rhi·​zos·​to·​mae
rīˈzästəˌmē
: 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 -s
rhizostomous
(ˈ)rī¦zästəməs
adjective

Word History

Etymology

New Latin, from Rhizostoma, genus of jellyfishes, from rhiz- + -stoma

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Dictionary Entries Near Rhizostomae

Cite this Entry

“Rhizostomae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rhizostomae. Accessed 26 Dec. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!