Hypertext Webster Gateway: "zygodactylous"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Zygodactylic \Zyg`o*dac"ty*lic\, Zygodactylous
\Zyg`o*dac"tyl*ous\ (?; 277), a. [Gr. ? a yoke, pair + ? finger,
toe: cf. F. zygodactyle.] (Zo["o]l.)
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.
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