Ptēr'o-dāc'tyl, n.

noun

(tēr'o-dāk'til), n. [Fr. ptēro-dactyle, fr. Gr. πτερόν, a wing, and δάκτυλος, finger, toe.] (Paleon.) A fossil reptile which had the little finger of the hand greatly elongated, for the purpose of bearing a membraneous wing.

A drawing of a pterodactyl skeleton with its long wings extended. — Pterodactyl.