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Meaning of acanthopterygian

ac•an•thop•ter•yg•i•an

Pronunciation: (ak"un-thop"tu-rij'ē-un), [key]
— adj.
  1. belonging or pertaining to the Acanthopterygii (Acanthopteri), the group of spiny-finned fishes, including the bass and perch.
—n.
  1. an acanthopterygian fish.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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