alimentary canal n.
The mucous membrane-lined tube of the digestive system that extends from the mouth to the anus and through which food passes, digestion takes place, and wastes are eliminated; it includes the pharynx, esophagus, stomach, and intestines. Also called alimentary tract, digestive tract.
The tube or passage of the digestive system through which food passes, nutrients are absorbed, and waste is eliminated. See also digestive tract.