内耳道 nèi'ěrdào internal auditory meatus Origin Definitions Defs Strokes Stroke Words Sentences Sents 内耳 內耳 nèi'ěr noun inner ear The innermost part of the ear responsible for hearing and balance; it includes the semicircular canals, vestibule, and cochlea.道 dào noun channel channel; conduit; passage (e.g. for water, air, or biological fluids)