Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A disease of the ear in which the movement of the stapes within the oval window becomes impeded by abnormal deposits of spongy bone, leading to a progressive loss of hearing.

from The Century Dictionary.

  • noun A hardening of the tissues and ankylosis of the ossicles of the middle ear.
  • noun A growth of spongy bone substance in the capsule of the internal ear.

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

  • noun hereditary disorder in which ossification of the labyrinth of the inner ear causes tinnitus and eventual deafness

Etymologies

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  • Hard of hearing.

    November 7, 2011