Zygodactylic

{ Zyg`o*dac"ty*lic (?), Zyg`o*dac"tyl*ous (?; 277), } a. [Gr. zygo`n a yoke, pair + ? finger, toe: cf. F. zygodactyle.] (Zoöl.) Yoke-footed; having the toes disposed in pairs; -- applied to birds which have two toes before and two behind, as the parrot, cuckoo, woodpecker, etc.