digestive tract vs alimentary tract

digestive tract and alimentary tract both are nouns.

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

As nouns, digestive tract and alimentary tract are synonyms defined as:

digestive tract and alimentary tract: tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination

Other synonyms of digestive tract include alimentary canal, digestive tube, gastrointestinal tract, GI tract.

digestive tract (noun)	alimentary tract (noun)
tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination	tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination