alimentary tract vs alimentary canal

alimentary tract and alimentary canal both are nouns.

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

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

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

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

alimentary tract (noun)	alimentary canal (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