Search Result for "pylorus": 
Wordnet 3.0

NOUN (1)

1. a small circular opening between the stomach and the duodenum; 



The Collaborative International Dictionary of English v.0.48:

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]


WordNet (r) 3.0 (2006):

pylorus
    n 1: a small circular opening between the stomach and the
         duodenum