embryonic disk

noun

Definition of embryonic disk

2 : the part of the inner cell mass of a blastocyst from which the embryo of a placental mammal develops

called also embryonic shield

First Known Use of embryonic disk

circa 1938, in the meaning defined at sense 1a

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The first known use of embryonic disk was circa 1938

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Cite this Entry

“Embryonic disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/embryonic%20disk. Accessed 7 Aug. 2020.

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More Definitions for embryonic disk

embryonic disk

noun
variants: or embryonic disc

Medical Definition of embryonic disk

2 : the part of the inner cell mass of a blastocyst from which the embryo of a placental mammal develops

called also embryonic shield

More from Merriam-Webster on embryonic disk

Britannica.com: Encyclopedia article about embryonic disk

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