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mediastinal vein in Medicine

mediastinal vein

n.
  1. Any of several small veins from the mediastinum emptying into the brachiocephalic vein or the superior vena cava.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.