small intestine

noun

: the narrow part of the intestine that lies between the stomach and colon, consists of duodenum, jejunum, and ileum, secretes digestive enzymes, and is the chief site of the digestion of food into small molecules which are absorbed into the body

Examples of small intestine in a Sentence

Recent Examples on the Web
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Bacterial cultures act as probiotics in the small intestine, promoting a healthy gut with a plethora of additional benefits. Kathleen Ferraro, Verywell Health, 15 Feb. 2026 When this is not possible or if the needle has moved further along into the small intestine, abdominal surgery may be needed. Dr. John De Jong, Boston Herald, 15 Feb. 2026 An autopsy by the Miami-Dade Medical Examiner’s Office revealed the victim suffered a perforated lung, stomach, diaphragm and small intestine. Devoun Cetoute, Miami Herald, 14 Feb. 2026 This, in turn, slows the rate at which food moves from your stomach into your small intestine. Julia Ries Wexler, Outside, 4 Feb. 2026 See All Example Sentences for small intestine

Word History

First Known Use

1767, in the meaning defined above

Time Traveler
The first known use of small intestine was in 1767

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Cite this Entry

“Small intestine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/small%20intestine. Accessed 17 Feb. 2026.

Kids Definition

small intestine

noun
: the long narrow part of the intestine between the stomach and the colon in which food is mostly digested, from which digested food is absorbed into the body, and which consists of the duodenum, jejunum, and ileum

Medical Definition

small intestine

noun
: the part of the intestine that lies between the stomach and colon, consists of duodenum, jejunum, and ileum, secretes digestive enzymes, and is the chief site of the absorption of digested nutrients

called also small bowel

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