Definify.com

Webster 1913 Edition

Acanthopterygii

‖

Acˊan-thopˊter-yg′i-i

,

Noun.

pl.

[NL., from Gr. [GREEK] thorn + [GREEK] fin, dim. fr. [GREEK] wing.]

(Zool.)

An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.