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megaesophagus in Medicine

megaesophagus

(mĕg′ə-ĭ-sŏfə-gəs)
n.
  1. Abnormal enlargement of the lower portion of the esophagus, as seen in patients with achalasia.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.