Pylorus

noun

Definitions

Noun
  1. 1
    In vertebrates, including humans, a zone at the lower end of the stomach that leads to and opens into the duodenum.
  2. 2
    a small circular opening between the stomach and the duodenum wordnet
  3. 3
    A muscular or myovascular structure that controls the opening of an orifice or lumen of an organ.

Etymology

From Latin pylōrus, from Ancient Greek πυλωρός (pulōrós, “gatekeeper”).

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