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pyloric stenosis

noun Pathology.
  1. an abnormal narrowing of the valve at the outlet from the stomach, preventing normal passage of food into the small intestine.
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Origin of pyloric stenosis

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

pyloric stenosis in Medicine

pyloric stenosis

n.
  1. Narrowing of the gastric pylorus, especially by congenital muscular hypertrophy or by scarring resulting from a peptic ulcer.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.