axillary vein

n.

The continuation of the basilic and brachial veins that runs from the lower border of the teres major muscle to the outer border of the first rib where it becomes the subclavian vein.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.