- either of a pair of veins, one on each side of the body, that return blood from the arms to the heart.
Origin of subclavian vein
First recorded in 1760–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A continuation of the axillary vein at the lateral border of the first rib, passing medially to join the internal jugular vein and forming the brachiocephalic vein on each side.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.