plural noun
My·​til·​i·​dae | \ mīˈtiləˌdē \

Definition of Mytilidae

: a family of marine bivalve mollusks (order Filibranchia) having the shell elongated and equivalve with a large narrow internal ligament and a byssus for attachment to the substrate — compare mussel

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History and Etymology for Mytilidae

New Latin, from Mytilus, type genus + -idae

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Cite this Entry

“Mytilidae.” Dictionary, Merriam-Webster, Accessed 27 Oct. 2020.

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