- a combining form meaning “wing,” “feather,” used in the formation of compound words: pterodactyl.
Origin of ptero-
- wing, feather, or a part resembling a wingpterodactyl
Word Origin and History for ptero-
before vowels pter-, word-forming element in science meaning "feather; wing," from comb. form of Greek pteron "wing," from PIE *pt-ero- (cf. Sanskrit patram "wing, feather," Old Church Slavonic pero "pen," Old Norse fjöðr, Old English feðer), from root *pet- "to rush; to fly" (see petition (n.))
- Wing; feather:pterion.