helicotrema

[ hĕl′ĭ-kō-trēmə ]

n.

An opening at the apex of the cochlea that connects the vestibular canal and the scala tympani.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.