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90s Slang You Should Know

tympanic sinus

tympanic sinus in Medicine

tympanic sinus n.
A depression in the tympanic cavity behind the tympanic promontory.

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