Plants and Animals
Zoology and Veterinary Medicine
Zoology: General
Pylorus

pylorus

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views updated Jun 11 2018

pylorus In vertebrates, the region of the stomach that lies next to the duodenum.

A Dictionary of Zoology MICHAEL ALLABY

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pylorus

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views updated Jun 27 2018

pylorus (py-lor-ŭs) n. the lower end of the stomach, which leads to the duodenum. It terminates at a ring of muscle (pyloric sphincter), which contracts to close the opening by which the stomach communicates with the duodenum.
—pyloric adj.

A Dictionary of Nursing

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pylorus

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views updated May 23 2018

pylorus (anat.) opening from the stomach into the duodenum. XVII. — Late L. pylōrus- — Gr. pulōrós, pulourós gate-keeper, f. púlē gate + oûros watcher, warder.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

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