pylorus

American  

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

noun

Anatomy.

plural

pylori

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- /

plural

pylori

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

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Other Word Forms

• postpyloric adjective
• prepyloric adjective
• pyloric adjective

Etymology

Origin of pylorus

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

Example Sentences

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 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

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

As an illustration of this, we have his correct statement, established by experiment, that the pylorus acts as a valve only during the process of digestion, and that it is relaxed when digestion is completed.

From Fathers of Biology by McRae, Charles