round window
- a membrane-covered opening in the inner wall of the middle ear that compensates for changes in cochlear pressure.
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Origin of round window
First recorded in 1900–05
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
round window
- An opening on the medial wall of the middle ear that leads into the cochlea and is covered by the secondary tympanic membrane.fenestra of cochlea
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.