Definitions

from The Century Dictionary.

  • noun In pathol., excessive acuteness of the sense of hearing.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun medicine A heightened sensitivity to some sounds

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun abnormal acuteness of hearing due to increased irritability of the sensory neural mechanism; characterized by intolerance for ordinary sound levels

Etymologies

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