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germ layer
noun
: any of the three primary layers of cells differentiated in most embryos during and immediately following gastrulation
Examples of germ layer in a Sentence
Recent Examples on the Web
Also lost is the inner germ layer that's full of antioxidants, magnesium, potassium, vitamin B and healthy fats.
—
Sandee Lamotte, CNN, 13 July 2021
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Word History
First Known Use
1877, in the meaning defined above
Dictionary Entries Near germ layer
Cite this Entry
“Germ layer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/germ%20layer. Accessed 7 Feb. 2025.
Medical Definition
germ layer
noun
: any of the three primary layers of cells differentiated in most embryos during and immediately following gastrulation
More from Merriam-Webster on germ layer
Britannica.com: Encyclopedia article about germ layer
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