'Hallux' definitions:

Definition of 'hallux'

From: WordNet
noun
The first largest innermost toe [syn: big toe, great toe, hallux]

Definition of 'Hallux'

From: GCIDE
  • Hallux \Hal"lux\ (h[a^]l"l[u^]ks), n. [NL., fr. L. hallex, allex.] (Anat.) The first, or preaxial, digit of the hind limb, corresponding to the pollux in the fore limb; the great toe; the hind toe of birds. [1913 Webster]