auditory canal 名詞
  耳道,吸道
  Au·di·to·ry a.  Of or pertaining to hearing, or to the sense or organs of hearing; as, the auditory nerve. See Ear.
  Auditory canal Anat., the tube from the auditory meatus or opening of the ear to the tympanic membrane.
  auditory canal
       n : either of the passages in the outer ear from the auricle to
           the tympanic membrane [syn: auditory meatus, acoustic
           meatus, ear canal, external auditory canal]