Pylorus definition

pī-lôrəs, pĭ-
Frequency:
The passage at the lower end of the stomach that opens into the duodenum.
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The opening, surrounded by muscular tissue, from the stomach into the duodenum, the first part of the small intestine.
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The passage at the lower end of the stomach that opens into the duodenum.
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The passage at the lower end of the stomach that opens into the small intestine.
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(anatomy) The opening in a vertebrate, including humans, at the lower end of the stomach that opens into the duodenum.
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A muscular or myovascular structure that controls the opening of an orifice or lumen of an organ.
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Other Word Forms

Noun

Singular:
pylorus
Plural:
pylori, pyloruses

Origin of pylorus

  • Late Latin pylōrus from Greek pulōros pulē gate ouros guard wer-3 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin, from πυλωρός (pulōros, “gatekeeper").

    From Wiktionary