a tubular connection between the yolk sac and the embryonic gut in the developing embryo.
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- yolk membrane,
- yolk sac,
- yolk-sac tumor,
- yom kippur,
- yom kippur war,
- yom tov
Origin of yolk stalk
First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for yolk stalk
In the region of the yolk-stalk it is somewhat enlarged and ends in a blind sac like a caecum.Development of the Digestive Canal of the American Alligator|Albert M. Reese
A narrow ductlike part that connects the yolk sac to the middle of the digestive tract of an embryo.omphalomesenteric duct
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.