- dipterygian
Useful english dictionary. 2012.
Useful english dictionary. 2012.
Dipterygian — Dip ter*yg i*an, a. [Gr. di = di s twice + ? a fin, dim. of ? wing.] (Zo[ o]l.) Having two dorsal fins; said of certain fishes. [1913 Webster] … The Collaborative International Dictionary of English