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actinopterygian

[ak-tuh-nop-tuh-rij-ee-uh n] /ˌæk təˌnɒp təˈrɪdʒ i ən/
adjective
1.
belonging or pertaining to the Actinopterygii, a group of bony fishes.
noun
2.
an actinopterygian fish.
Origin
< New Latin Actinopterygi(i) (plural) (actino- actino- + Greek pterýgi(on) fin, equivalent to pteryg- (stem of ptéryx wing) + -ion diminutive suffix) + -an
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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actinopterygian in Science
actinopterygian
  (āk'tə-nŏp'tə-rĭj'ē-ən)   
See ray-finned fish.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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