stapes

English Thesaurus

1. the stirrup-shaped ossicle that transmits sound from the incus to the cochlea (noun.body)

hypernym	:	auditory ossicle,
definition	:	ossicles of the middle ear that transmit acoustic vibrations from the eardrum to the inner ear (noun.body)

part meronym	:	middle ear, tympanic cavity, tympanum,
definition	:	the main cavity of the ear; between the eardrum and the inner ear (noun.body)