noun ·Uncommon ·Advanced level

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.

Synonyms

All synonyms

abdomenanusappendixbowelsbraincolon

Etymology

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

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.