pylorus

American  

[pahy-lawr-uhs, -lohr-, pi-] / paɪˈlɔr əs, -ˈloʊr-, pɪ- /

noun

Anatomy.

• pylori
  plural

1. the opening between the stomach and the duodenum.

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pylorus British  

/ paɪˈlɔːrəs /

noun

1. the small circular opening at the base of the stomach through which partially digested food (chyme) passes to the duodenum

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pylorus Scientific  

/ pī-lôr′əs,pĭ- /

• pylori
  plural

1. The passage at the lower end of the stomach that opens into the small intestine.

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Other Word Forms

Derived Forms

• postpyloric
  adjective
• prepyloric
  adjective
• pyloric
  adjective

Inflected Forms

Nouns

• pylori
  plural

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Etymology

Origin of pylorus

1605–15; < Late Latin < Greek pylōrós literally, gatekeeper

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Example Sentences

See Examples For:

pylorus pylori

The initial mixing waves are relatively gentle, but these are followed by more intense waves, starting at the body of the stomach and increasing in force as they reach the pylorus.

From Textbooks ● Jun. 19, 2013

Both processes take time, so the pumping action of the pylorus must be carefully controlled to prevent the duodenum from being overwhelmed with chyme.

From Textbooks ● Jun. 19, 2013

The funnel-shaped pylorus connects the stomach to the duodenum.

From Textbooks ● Jun. 19, 2013

Figure 23.15 Stomach The stomach has four major regions: the cardia, fundus, body, and pylorus.

From Textbooks ● Jun. 19, 2013

The intestinal canal is long, commencing at the pylorus or lower opening of the stomach, and averaging from ninety to one hundred feet.

From A Treatise on Sheep: The Best Means for their Improvement, General Management, and the Treatment of their Diseases. by Ambrose Blacklock

Slightly more than one third showed evidence of infection, but the researchers found no association between sugar-sweetened beverage consumption and H. pylori infection.

From Science Daily ● Sep. 10, 2026

Lung cancer was linked to smoking and air pollution, while stomach cancer was largely linked to a bacteria called Helicobacter pylori.

From Barron's ● Feb. 3, 2026

The agency's report also looked at nine cancer-causing infections including HPV, hepatitis viruses which lead to liver cancer and the stomach bug H. pylori.

From BBC ● Feb. 3, 2026

Symptoms include bloating, heartburn and general stomach pain, which can be triggered by an infection of the bacterium Helicobacter pylori.

From Salon ● Sep. 7, 2023

Ulcers caused by H. pylori infections are treated with antibiotics, and those caused by NSAIDs are treated by stopping their use.

From Seattle Times ● Feb. 25, 2023

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