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actinopterygian

[ak-tuh-nop-tuh-rij-ee-uh n]
adjective
  1. belonging or pertaining to the Actinopterygii, a group of bony fishes.
noun
  1. an actinopterygian fish.

Origin of actinopterygian

< 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 Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for actinopterygian

Historical Examples of actinopterygian

actinopterygian in Science

actinopterygian

[ăk′tə-nŏp′tə-rĭj′ē-ən]
  1. See ray-finned fish.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.