a creature who was half-man and half-bull, the offspring of Pasiphaë and a bull with which she fell in love. Confined in Crete in a labyrinth made by Daedalus and fed on human flesh, it was eventually slain by Theseus.
from Old French, via Latin from Greek Minōtauros, from Minōs(see Minos) + tauros 'bull'
Minotaur in other Oxford dictionaries
Definition of Minotaur in the US English dictionary