[ pahy-lawr-uhs, -lohr-, pi- ]
/ paɪˈlɔr əs, -ˈloʊr-, pɪ- /
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.
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Origin of pylorus
1605–15; <Late Latin <Greek pylōrós literally, gatekeeper
OTHER WORDS FROM pyloruspy·lor·ic [pahy-lawr-ik, -lor-, pi-], /paɪˈlɔr ɪk, -ˈlɒr-, pɪ-/, adjectivepost·py·lor·ic, adjectivepre·py·lor·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for pylorus
/ (paɪˈlɔːrəs) /
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 of pyloruspyloric, 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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for pylorus
[ pī-lôr′əs ]
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.
Scientific definitions for pylorus
[ pī-lôr′əs, pĭ- ]
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.