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pyourachus in Medicine

pyourachus

(pī′ō-yurə-kəs)
n.
  1. An accumulation of pus in the urachus of a fetus.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.