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

Word History

First Known Use

1877, in the meaning defined above

Medical Definition

germ layer

noun

: any of the three primary layers of cells differentiated in most embryos during and immediately following gastrulation