ectoderm vs germ layer

ectoderm and germ layer both are nouns.

Word	Noun	Adjective	Verb	Adverb
ectoderm	Yes	No	No	No
germ layer	Yes	No	No	No

As nouns, germ layer is a hypernym of ectoderm; that is, germ layer is a word with a broader meaning than ectoderm:

ectoderm: the outer germ layer that develops into skin and nervous tissue
germ layer: (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation

ectoderm (noun)	germ layer (noun)
the outer germ layer that develops into skin and nervous tissue	(embryology) any of the 3 layers of cells differentiated in embryos following gastrulation