round window

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 in Medicine

round window

n.
  1. 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
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.