Hypertext Webster Gateway: "zygodactyl"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Zygodactyl \Zyg`o*dac"tyl\, Zygodactyle \Zyg`o*dac"tyle\, n.
[See {Zygodactylic}.] (Zo["o]l.)
Any zygodactylous bird.
From WordNet (r) 1.7 (wn)
zygodactyl
adj : (of bird feet) having the first and fourth toes directed
backward the second and third forward [ant: {heterodactyl}]
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