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tympanic bone

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noun Anatomy, Zoology.
  1. (in mammals) a bone of the skull, supporting the tympanic membrane and enclosing part of the tympanum or middle ear.
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Origin of tympanic bone

First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for tympanic bone

tympanic bone

noun
  1. the part of the temporal bone in the mammalian skull that surrounds the auditory canal
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

tympanic bone in Medicine

tympanic bone

n.
  1. The bony ring in the fetus that develops after birth into the tympanic part of the temporal bone of the skull, partially enclosing the middle ear and supporting the eardrum.tympanic ring
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.