plural noun
Tri·​a·​can·​thi·​dae | \ ˌtrīəˈkan(t)thəˌdē\

Definition of Triacanthidae

: a family of marine fish (suborder Balistoidea) that have a protractile upper jaw, live chiefly on sandy bottoms where they feed on mollusks, and comprise the hornfishes

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History and Etymology for Triacanthidae

New Latin, from Triacantha, type genus (from tri- + acantha) + -idae

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