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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Het·er·o·dac·tyl a. Zool. Heterodactylous. -- n. One of the Heterodactylæ.
 

From: WordNet (r) 2.0

 heterodactyl
      adj : (of bird feet) having the first and second toes directed
            backward the third and fourth forward [ant: zygodactyl]