Hypertext Webster Gateway: "heterodactyl"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Heterodactyl \Het`er*o*dac"tyl\, a. (Zo["o]l.)
Heterodactylous. -- n. One of the Heterodactyl[ae].
From WordNet (r) 1.7 (wn)
heterodactyl
adj : (of bird feet) having the first and second toes directed
backward the third and fourth forward [ant: {zygodactyl}]
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