otoscope

from WordNet (r) 3.0 (2006)

otoscope
    n 1: medical instrument consisting of a magnifying lens and
         light; used for examining the external ear (the auditory
         meatus and especially the tympanic membrane) [syn:
         {otoscope}, {auriscope}, {auroscope}]

from The Collaborative International Dictionary of English v.0.48

Otoscope \O"to*scope\, n. [Oto- + -scope.]
   An instrument for examining the condition of the ear.
   [1913 Webster]