Echinoidea

noun plural

Ech·​i·​noi·​dea ˌek-ə-ˈnȯi-dē-ə How to pronounce Echinoidea (audio)
: a class of motile bottom-dwelling echinoderms comprising the sea urchins and related forms
echinoid noun

Dictionary Entries Near Echinoidea

Cite this Entry

“Echinoidea.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Echinoidea. Accessed 10 Nov. 2024.

Love words? Need even more definitions?

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