anisodactylous


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an·i·so·dac·tyl

 (ăn-ī′sō-dăk′təl, ăn′ĭ-)
adj. also an·i·so·dac·ty·lous (-tə-ləs)
Having three toes projecting forward and one projecting backward, as in the passerine birds.
n.
An anisodactyl bird, such as a warbler.
[an- + iso- + -dactyl.]
an·i′so·dac′ty·ly (-tə-lē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.