inferior thyroid vein

n.
  1. A vein that is formed by veins from the isthmus and lateral lobe of the thyroid gland and the plexus thyroideus impar, terminating in the left brachiocephalic vein.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.