hallus

Hallus is a term that appears in some historical medical literature as an alternative spelling or misspelling of hallux, the standard anatomical term for the big toe. In contemporary anatomy, hallux is used; hallus has no separate recognized meaning in modern medical nomenclature. When encountered, hallus is typically corrected to hallux. The word hallux comes from Latin, with the genitive form hallucis. The plural of hallux in English is halluces or halluxes. Hallus may also appear in non-medical contexts as a surname or toponym, but such uses are unrelated to the anatomy.