Archipterygium :: Archipterygium (n.) The primitive form of fin, like that of Ceratodus..

Basipterygium :: Basipterygium (n.) A bar of cartilage at the base of the embryonic fins of some fishes. It develops into the metapterygium.

Cheiropterygium :: Cheiropterygium (n.) The typical pentadactyloid limb of the higher vertebrates.

Ichthyopterygium :: Ichthyopterygium (n.) The typical limb, or lateral fin, of fishes..

Mesopterygium :: Mesopterygium (n.) The middle one of the three principal basal cartilages in the fins of fishes.

Metapterygium :: Metapterygium (n.) The posterior of the three principal basal cartilages in the fins of fishes.

Propterygium :: Propterygium (n.) The anterior of three principal cartilages in the fins of some fishes.

Pterygium :: Pterygium (n.) A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye.

Pterygiums :: Pterygiums (pl. ) of Pterygiu.

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