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umbilical ligament

n.
  1. The obliterated umbilical artery that persists as a fibrous cord passing upward alongside the bladder to the umbilicus; medial umbilical ligament.
  2. The remnant of the urachus that persists as a midline fibrous cord located between the apex of the bladder and the umbilicus; middle umbilical ligament.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.