plural noun
Ne·​re·​idae | \ nə̇ˈrēəˌdē \

Definition of Nereidae

: a large family of predaceous marine polychaete worms that have an elongated many-segmented body with large complex parapodia on most segments and a well-defined head with paired tentacles and palps, four prostomial eyes, eight peristomial cirri, and large jaws which bite transversely and that include burrowing and free-swimming forms — see nereis

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History and Etymology for Nereidae

New Latin, from Nereis, type genus + -idae

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Cite this Entry

“Nereidae.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2021.

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