gastric bypass

noun

: a surgical bypass operation that typically involves reducing the size of the stomach and reconnecting the smaller stomach to bypass the first portion of the small intestine so as to restrict food intake and reduce caloric absorption in cases of severe obesity compare gastric banding

Examples of gastric bypass 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.
That would never have happened if Heider had performed a gastric bypass instead of a sleeve, the suit alleged. Amber Gaudet updated February 20, Charlotte Observer, 20 Feb. 2026 People who have had gastric bypass surgery can also become deficient in vitamin D, says Bouwmeester. Stacey Colino, Time, 30 Jan. 2026 After gastric bypass surgery and excess skin removal, Jones dropped more than 400 lbs. Lynsey Eidell, PEOPLE, 10 Jan. 2026 Hale took the inaugural ride in celebration of his successful twin knee replacements, gastric bypass surgery and losing over 150 pounds. Brady MacDonald, Oc Register, 5 Dec. 2025 See All Example Sentences for gastric bypass

Word History

First Known Use

1967, in the meaning defined above

Time Traveler
The first known use of gastric bypass was in 1967

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Cite this Entry

“Gastric bypass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gastric%20bypass. Accessed 21 Feb. 2026.

Medical Definition

gastric bypass

noun
: a surgical bypass operation performed to restrict food intake and reduce absorption of calories and nutrients in the treatment of severe obesity that typically involves reducing the size of the stomach and reconnecting the smaller stomach to bypass the first portion of the small intestine
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