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tympanic bone

noun, Anatomy, Zoology.
(in mammals) a bone of the skull, supporting the tympanic membrane and enclosing part of the tympanum or middle ear.
Origin of tympanic bone
First recorded in 1840-50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for tympanic bone

tympanic bone

the part of the temporal bone in the mammalian skull that surrounds the auditory canal
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
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tympanic bone in Medicine

tympanic bone n.
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. Also called tympanic ring.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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