acanthopterygii Meaning, Definition & Usage

  1. noun teleost fishes having fins with sharp bony rays
    superorder Acanthopterygii.

WordNet

Ac`an*thop`ter*yg"i*i noun plural
Etymology
NL., from Gr. thorn + fin, dim. fr. wing.
Definitions
  1. (Zoöl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.

Webster 1913