Acanthopterygii (meaning `spiny finned one`) is a superorder of bony fishes in the class Actinopterygii. Members of this superorder are also known as the ray-finned fishes for the characteristic sharp, bony rays in their fins; however this name is also often given to the class Actinopterygii as a whole. Orders: ==Sources== ...
• (n. pl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.
Ac`an·thop`ter·yg'i·i noun plural [ New Latin , from Greek ... thorn + ... fin, dim. from ... wing.] (Zoology) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch. 
[n] - teleost fishes having fins with sharp bony rays
superorder Acanthopterygii noun teleost fishes having fins with sharp bony rays