digestive tract

noun

: the tubular passage typically extending from the mouth to the anus or cloaca that functions in digestion and absorption of food and elimination of residual waste and that in most mammals includes the mouth, pharynx, esophagus, stomach, intestine, and anus

called also alimentary canal, alimentary tract

Examples of digestive tract in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Infant botulism is a rare but serious illness caused when spores of the bacterium Clostridium botulinum enter an infant’s digestive tract and produce toxins which attack nerves, leading to muscular and respiratory paralysis. Victoria Forster, Forbes.com, 14 June 2026 The polyphenols and tannins in coffee bind to iron in the digestive tract and block it from being absorbed. Allison Palmer updated June 13, Sacbee.com, 13 June 2026 Insoluble fiber helps move food through your digestive tract, while soluble fiber promotes the growth of healthy gut bacteria. Julie Marks, Verywell Health, 12 June 2026 About 70% of the immune system lives in the digestive tract, and a healthy gut has been linked to sharper focus, balanced hormones, lower inflammation and better energy. Hanna Wickes, Charlotte Observer, 11 June 2026 See All Example Sentences for digestive tract

Word History

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of digestive tract was in 1842

Browse Nearby Words

Cite this Entry

“Digestive tract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/digestive%20tract. Accessed 16 Jun. 2026.

Medical Definition

digestive tract

noun
: the tubular passage typically extending from mouth to anus or cloaca that functions in digestion and absorption of food and elimination of residual waste and that in most mammals includes the mouth, pharynx, esophagus, stomach, intestine, and anus

called also alimentary canal, alimentary tract

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster