Zygodactylic \Zyg`o*dac"ty*lic\, Zygodactylous
\Zyg`o*dac"tyl*ous\ (?; 277), a. [Gr. zygo`n a yoke, pair + ?
finger, toe: cf. F. zygodactyle.] (Zool.)
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.
[1913 Webster]