hearing aid

1 definition found

hearing aid - WordNet (r) 2.1 (2005) :

  hearing aid
      n 1: an electronic device that amplifies sound and is worn to
           compensate for poor hearing [syn: hearing aid, deaf- aid
           ]
      2: a conical acoustic device formerly used to direct sound to
         the ear of a hearing-impaired person [syn: hearing aid,
         ear trumpet]