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germinal disk

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noun Embryology.
  1. blastodisk.

Origin of germinal disk

First recorded in 1875–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
germinal disk in Medicine

germinal disk

n.
  1. A flattened, disklike region of cells from which the embryo develops in the fertilized ovum of many vertebrate species.embryonic disk
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.