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portacaval shunt in Medicine

portacaval shunt

n.
  1. Any of various communications between the portal vein and the general circulation, especially a surgical anastomosis between the portal vein and the vena cava.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.