Propterygium

[prɒptə'rɪdʒjəm]

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

Inputed by Armand

n. the anterior basal cartilage of the fins in the Elasmobranchii:—pl. Proptery′gia.—adj. Proptery′gial.

Edited by Lester