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allantoic stalk in Medicine

allantoic stalk

n.
  1. The narrow connection between the intraembryonic portion of the allantois and the extraembryonic allantoic vesicle.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.