[hal-uh ks]
noun, plural hal·lu·ces [hal-yuh-seez] /ˈhæl yəˌsiz/. Anatomy, Zoology.
  1. 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.
  2. 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for halluces


  1. the first digit on the hind foot of a mammal, bird, reptile, or amphibian; the big toe of man

Word Origin for hallux

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

Word Origin and History for halluces



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

Online Etymology Dictionary, © 2010 Douglas Harper

halluces in Medicine


n. pl. hal•lu•ces (hălyə-sēz′, hălə-)
  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.