plural noun
El·​y·​si·​idae | \ ˌeləˈsīəˌdē \

Definition of Elysiidae

: a family of slender creeping sea slugs with distinct head, tapering tail, auriculate tentacles, and lateral body folds functioning as fins when the animal swims

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History and Etymology for Elysiidae

New Latin, from Elysia, type genus + -idae

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Cite this Entry

“Elysiidae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Elysiidae. Accessed 24 Oct. 2020.

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