stomach vs alimentary tract

stomach and alimentary tract both are nouns.

Word	Noun	Adjective	Verb	Adverb
stomach	Yes	No	Yes	No
alimentary tract	Yes	No	No	No

stomach (noun)	alimentary tract (noun)
an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion	tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination
the region of the body of a vertebrate between the thorax and the pelvis
an appetite for food
an inclination or liking for things involving conflict or difficulty or unpleasantness

stomach (verb)	alimentary tract (verb)
put up with something or somebody unpleasant
bear to eat