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tympanic bone

American  

noun

Anatomy, Zoology.

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

tympanic bone British  

noun

  1. 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

Etymology

Origin of tympanic bone

First recorded in 1840–50

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.