Search Result for "zygodactyl foot":
Wordnet 3.0

NOUN (1)

1. a bird's foot having the first and fourth toes of each foot directed backward and the second and third forward; 



WordNet (r) 3.0 (2006):

zygodactyl foot
    n 1: a bird's foot having the first and fourth toes of each foot
         directed backward and the second and third forward [ant:
         heterodactyl foot]