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[hal-uh ks] /ˈhæl əks/
noun, plural halluces
[hal-yuh-seez] /ˈhæl yəˌsiz/ (Show IPA).
Anatomy, Zoology.
the first or innermost digit of the foot of humans and other primates or of the hind foot of other mammals; great toe; big toe.
the comparable, usually backward-directed digit in birds.
Origin of hallux
1825-35; < Late Latin (h)allux, for Latin hallus, by association with pollex thumb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for hallux


the first digit on the hind foot of a mammal, bird, reptile, or amphibian; the big toe of man
Word Origin
C19: New Latin, from Late Latin allex big toe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hallux

1831, from Modern Latin hallux, corruption of allex "great toe."

Online Etymology Dictionary, © 2010 Douglas Harper
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hallux in Medicine

hallux hal·lux (hāl'əks)
n. pl. hal·lu·ces (hāl'yə-sēz', hāl'ə-)

  1. The big toe.

  2. A homologous or similar digit on the hind foot of certain mammals.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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