'Pylorus' definitions:

Definition of 'pylorus'

(from WordNet)
noun
A small circular opening between the stomach and the duodenum

Definition of 'Pylorus'

From: GCIDE
  • Pylorus \Py*lo"rus\, n.; pl. Pylori. [L., fr. Gr. ? pylorus, gate keeper; ? a gate + ? watcher, guardian.] (Anat.) (a) The opening from the stomach into the intestine. (b) A posterior division of the stomach in some invertebrates. [1913 Webster]