hemoperfusion

[hē′mō-pər-fyōōzhən]
n.
  1. The passage of blood through columns of adsorptive material, such as activated charcoal, to remove toxic substances from the blood.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.