subclavian triangle

n.
  1. The triangle bounded by the clavicle, by the omohyoid muscle, and by the sternocleidomastoid muscle, containing the subclavian artery and vein.omoclavicular triangle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.