wheat vs wheat germ

wheat and wheat germ both are nouns.

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

wheat (noun)	wheat germ (noun)
a variable yellow tint; dull yellow, often diluted with white	embryo of the wheat kernel; removed before milling and eaten as a source of vitamins
grains of common wheat; sometimes cooked whole or cracked as cereal; usually ground into flour
annual or biennial grass having erect flower spikes and light brown grains