plural noun
Te·​reb·​ri·​dae | \təˈrebrəˌdē\

Definition of Terebridae 

: a family of chiefly tropical marine snails (group Toxoglossa) with slender tall-spired shells of many whorls — see auger shell

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History and Etymology for Terebridae

New Latin, from Terebra, type genus + -idae

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