a. (Zool.) Heterodactylous. --
‖n. pl. [ NL., fr. Gr. &unr_; other + &unr_; a finger. ] (Zool.) A group of birds including the trogons. [ 1913 Webster ]
a. [ Hetero- + Gr. &unr_; a toe. ] (Zool.) Having the first and second toes turned backward, as in the trogons. [ 1913 Webster ]