Acanthopterygii
(n. pl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.
Similar Words:
Acanth Acantha Acanthaceous Acanthi Acanthine Acanthocarpous Acanthocephala Acanthocephalous Acanthophorous Acanthopodious