vasa vasorum

[ vā-sôrəm, -zôr- ]

pl.n.

Small arteries that are distributed to the outer and middle coats of the larger blood vessels and to their corresponding veins.

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