heterodactyl


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het·er·o·dac·tyl

 (hĕt′ə-rō-dăk′təl) also het·er·o·dac·ty·lous (-tə-ləs)
adj.
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.
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.

heterodactyl

(ˌhɛtərəʊˈdæktɪl)
adj
(Zoology) (of the feet of certain birds) having the first and second toes directed backwards and the third and fourth forwards
n
(Zoology) a bird with heterodactyl feet
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.heterodactyl - (of bird feet) having the first and second toes directed backward the third and fourth forward
zygodactyl - (of bird feet) having the first and fourth toes directed backward the second and third forward
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