Daily Almanac for
Nov 30, 2009
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mid'dle ear'



Anat.
the middle portion of the ear, consisting of the tympanic membrane and an air-filled chamber lined with mucous membrane, that contains the malleus, incus, and stapes. Cf. ear 1 (def. 1). See diag. under ear1.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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