Term Name:	germ layer
Synonyms:	embryonic germ layer, embryonic germ layers, embryonic tissue, germinal layer, primary germ layer
Definition:	A layer of cells produced during the process of gastrulation during the early development of the animal embryo, which is distinct from other such layers of cells, as an early step of cell differentiation. The three types of germ layers are the endoderm, ectoderm, and mesoderm.
Ontology:	Cell Ontology [UBERON:0000923]