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het·er·o·dac·tyl(hĕt′ə-rō-dăk′təl) also het·er·o·dac·ty·lous (-tə-ləs)
Having a zygodactyl foot in which the third and fourth toes project forward and the first and second toes project backward, as in the trogons.
het′er·o·dac′ty·ly (-tə-lē) n.
(Zoology) (of the feet of certain birds) having the first and second toes directed backwards and the third and fourth forwards
(Zoology) a bird with heterodactyl feet