vitelline membrane

the membrane surrounding the egg yolk.

1835–45 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To vitelline membrane
World English Dictionary
vitelline membrane (vɪˈtɛlɪn, -aɪn)
zoology a membrane that surrounds a fertilized ovum and prevents the entry of other spermatozoa

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

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.
Cite This Source
Example sentences
Eggs from treated birds are described as mottled in appearance, reflecting a porous vitelline membrane.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature