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vitelline membrane

the membrane surrounding the egg yolk.
Origin of vitelline membrane
1835-45 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for vitelline-membrane

vitelline membrane

/vɪˈtɛlɪn, -aɪn/
(zoology) a membrane that surrounds a fertilized ovum and prevents the entry of other spermatozoa
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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vitelline-membrane in Medicine

vitelline membrane n.

  1. The membrane enveloping the yolk of an egg. Also called ovular membrane, yolk membrane.

  2. The pellucid zone of a mammalian ovum. Also called yolk membrane.

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