Ray-finned-fish definitions

rā'fĭnd'
Any of various fishes belonging to the class Actinopterygii, having fins supported by long rays of bone. The ray-finned fishes are the largest group of fishes, comprising over 20,000 species.
noun
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Any of various fishes belonging to the class Actinopterygii, having fins supported by long rays of bone. The ray-finned fishes are the largest group of fishes, comprising over 20,000 species.
noun
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Any of various bony fishes belonging to the subclass Actinopterygii, having fins supported by thin bony rays. Ray-finned fish evolved in the early Devonian Period and include most species of fish today.
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