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[pahy-lawr-uh-plas-tee, -lohr-, pi-] /paɪˈlɔr əˌplæs ti, -ˈloʊr-, pɪ-/
the surgical alteration of the pylorus, usually a widening to facilitate the passage of food from the stomach to the duodenum.
Origin of pyloroplasty Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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pyloroplasty in Medicine

pyloroplasty py·lo·ro·plas·ty (pī-lôr'ə-plās'tē)
The surgical widening of the pyloric canal to facilitate emptying of gastric contents into the duodenum; it is commonly performed in conjunction with truncal vagectomy to treat peptic ulcer.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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