either of two major veins, formed by the merger of the subclavian and internal jugular veins, that drain blood from the head and arms.
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- brachiocephalic artery,
- brachiocephalic trunk,
Origin of brachiocephalic vein
First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Either of two veins formed by the union of the internal jugular and subclavian veins. See under left brachiocephalic vein and right brachiocephalic vein.innominate vein
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.