Cucumariidae

plural noun

Cu·​cu·​ma·​ri·​idae

ˌkyük(y)əməˈrīəˌdē

: a large family of shallow-water sea cucumbers (order Dendrochirota) having a number of intricately branched oral tentacles, an internal madreporite, and a well-developed respiratory tree

Word History

Etymology

New Latin, from Cucumaria, type genus + -idae

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!