pylorus

[ pahy-lawr-uh s, -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.

Nearby words

pyloromyotomy, pyloroplasty, pylorospasm, pylorostomy, pylorotomy, pylorus, pylos, pym, pymt., pynchon, pyo

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-/, adjectivepost·py·lor·ic, adjectivepre·py·lor·ic, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pylorus

It is probable that to an even greater extent resection of the pylorus will become the specialty of certain operators.
A System of Practical Medicine By American Authors, Vol. II|Various
Like many other structural changes, it is usually found in the neighborhood of the pylorus.
A System of Practical Medicine By American Authors, Vol. II|Various
Cancers situated near the pylorus or on the lesser curvature are the most likely to cause severe hemorrhage.
A System of Practical Medicine By American Authors, Vol. II|Various
It commences at the pylorus, and ascends obliquely backward to the under surface of the liver.
A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)|Calvin Cutter

The pylorus and two-thirds of the duodenal mucous membrane were much inflamed and the orifice of the bile-duct closed.
A System of Practical Medicine By American Authors, Vol. II|Various

British Dictionary definitions for pylorus

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

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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for pylorus

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.

Science definitions for pylorus

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.