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subclavian steal in Medicine

subclavian steal

n.
  1. Obstruction of the subclavian artery proximal to the origin of the vertebral artery. Blood flow through the vertebral artery is reversed, causing symptoms of cerebrovascular insufficiency.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.