plural noun
Blen·​ni·​oi·​dea | \ ˌblenēˈȯidēə\

Definition of Blennioidea

: a suborder of Percomorphi that includes the Blenniidae and other families of blennies and comprises marine fishes with the pectoral fins large but the pelvic fins reduced or absent, scales partially or wholly lacking, and a usually elongated body often specialized for tide pool existence

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History and Etymology for Blennioidea

New Latin, from Blennius + -oidea

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