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superior phrenic vein in Medicine

superior phrenic vein

n.
  1. Any of the small veins that are tributaries to the azygos and hemiazygos veins and drain the upper surface of the diaphragm.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.