[zoh-nuh puh-loo-si-duh, pel-yoo-]
- the transparent, noncellular layer surrounding the ovum of mammals, often having radial striations.
Origin of zona pellucida
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- The thick solid transparent outer membrane of a developed mammalian ovum.oolemma
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.