- the pouch that is formed by the invagination of an ectodermal placode and that develops into the internal ear.
Also called otic vesicle, otocyst.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Either of the paired sacs of invaginated ectoderm in the embryo that develop into the membranous labyrinth of the internal ear.otic vesicle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.