D defs.my
Entry 1 sense Webster, 1913

Anisodactylous

· An·i·so·dac·ty·lous · IPA
01 a. Characterized by unequal toes, three turned forward and one backward, as in most passerine birds.
  1. 1.
    Characterized by unequal toes, three turned forward and one backward, as in most passerine birds.(Zool.)