The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of a large group of fishes of the superorder Acanthopterygii, having bony skeletons and spiny rays in the dorsal and anal fins and including the bass, perch, mackerel, and swordfish.
the GNU version of the Collaborative International Dictionary of English
adj. Belonging to the order of fishes having spinose fins, as the perch.
The Century Dictionary and Cyclopedia
Of or pertaining to the Acanthopterygii; having the characters of the Acanthopterygii.
n. One of the Acanthopterygii; a fish with spiny fins.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a teleost fish with fins that are supported by sharp inflexible rays
Word Usage
"The acanthopterygian family (_Labyrinthici_) contains nine freshwater genera, and these are distributed between the East Indies and South and"