pylorus [ pahy- lawr- uh s, - lohr-, pi- ] SHOW IPA / paɪˈlɔr əs, -ˈloʊr-, pɪ- / PHONETIC RESPELLING EXAMPLES | WORD ORIGIN noun, plural py·lo·ri . [pahy- lawr-ahy, - lohr-ahy, pi-] /paɪˈlɔr aɪ, -ˈloʊr aɪ, pɪ-/ . Anatomy the opening between the stomach and the duodenum. Nearby words pyloromyotomy, pyloroplasty, pylorospasm, pylorostomy, pylorotomy, pylos, pym, pym, john, pymt., pynchon Origin of pylorus 1605–15; < Late Latin < Greek pylōrós literally, gatekeeper Related forms py·lor·ic , [pahy- lawr-ik, - lor-, pi-] /paɪˈlɔr ɪk, -ˈlɒr-, pɪ-/ adjective post·py·lor·ic, adjective pre·py·lor·ic, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pylorus British Dictionary definitions for pylorus noun plural -ri ( -raɪ) the small circular opening at the base of the stomach through which partially digested food (chyme) passes to the duodenum Derived Forms pyloric, adjective Word Origin for pylorus
C17: via Late Latin from Greek
pulōrus gatekeeper, from pulē gate + ouros guardian
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for pylorus n.
1610s, from Late Latin
pylorus "the lower orifice of the stomach," from Greek pyloros, literally "gatekeeper, porter," from pyle "gate" (see pylon) + ouros "watcher, guardian" (see warrant (n.)). Related: Pyloric.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for pylorus n. pl. py•lo•ri ( -lôr) ′ī′ The passage at the lower end of the stomach that opens into the duodenum. A muscular or myovascular structure that opens or closes an orifice or lumen of an organ.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for pylorus Plural pylori ( pī-lôr) ′ī′, pĭ- The passage at the lower end of the stomach that opens into the small intestine.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.