actinopterygian

[ak-tuh-nop-tuh-rij-ee-uh n]

adjective

belonging or pertaining to the Actinopterygii, a group of bony fishes.

noun

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. 2019

Examples from the Web for actinopterygian

Historical Examples of actinopterygian

Major adaptive levels in the evolution of the actinopterygian feeding mechanism.
A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas
Joan Echols

actinopterygian in Science

actinopterygian

[ăk′tə-nŏp′tə-rĭj′ē-ən]

See ray-finned fish.