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zona pellucida

[zoh-nuh puh-loo-si-duh, pel-yoo-] /ˈzoʊ nə pəˈlu sɪ də, pɛlˈyu-/
noun, plural zonae pellucidae
[zoh-nee puh-loo-si-dee, pel-yoo-] /ˈzoʊ ni pəˈlu sɪˌdi, pɛlˈyu-/ (Show IPA).
Anatomy
1.
the transparent, noncellular layer surrounding the ovum of mammals, often having radial striations.
Origin
1835-1845
1835-45; < Neo-Latin; see zone, pellucid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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zonae pellucidae in Medicine

zona pellucida zona pel·lu·ci·da (pə-lōō'sĭ-də, pěl-yōō'-)
n.
The thick solid transparent outer membrane of a developed mammalian ovum. Also called oolemma.

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