: 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 WebAlso lost is the inner germ layer that's full of antioxidants, magnesium, potassium, vitamin B and healthy fats.
Sandee Lamotte, CNN, 13 July 2021
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'germ layer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.