actinopterygian

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

/ ˌæk təˌnɒp təˈrɪdʒ i ən /

adjective

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

noun

an actinopterygian fish.

Nearby words

actinomycin,
actinomycoma,
actinomycosis,
actinon,
actinopod,
actinotherapy,
actinouranium,
actinozoan,
action,
action at a distance

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

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

Science definitions for actinopterygian

actinopterygian

[ ăk′tə-nŏp′tə-rĭj′ē-ən ]

See ray-finned fish.