acanthopterygii

Acanthopterygii

Ac`an*thop`ter*yg"i*i\, n. pl. [NL., from Gr. ? thorn + ? fin, dim. fr. ? wing.] (Zo["o]l.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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