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roof of tympanum

roof of tympanum in Medicine

roof of tympanum n.
The roof of the middle ear, formed by the thinned anterior surface of the petrous portion of the temporal bone.

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