wheat germ vs nourishment

wheat germ and nourishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
wheat germ	Yes	No	No	No
nourishment	Yes	No	No	No

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

wheat germ: embryo of the wheat kernel; removed before milling and eaten as a source of vitamins
nourishment: a source of materials to nourish the body

Other hypernyms of wheat germ include aliment, alimentation, nutriment, nutrition, sustenance, victuals.

wheat germ (noun)	nourishment (noun)
embryo of the wheat kernel; removed before milling and eaten as a source of vitamins	the act of nourishing
	a source of materials to nourish the body