anisodactylous

[an-ahy-suh-dak-tl-uh s, an-ahy-]
adjective
  1. Zoology. having the toes unlike, or unequal in number.
  2. Ornithology. having three toes directed forward and one backward.
Also an·i·so·dac·tyl.

Origin of anisodactylous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for anisodactyl

anisodactyl

adjective Also: anisodactylous
  1. (of the feet of passerine birds) having the first toe directed backwards and the other three toes directed forwards
noun
  1. a bird having this type of feet
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