pilojection

[pī′lə-jĕkshən]
n.
  1. The process of shooting a stiff mammalian hair into a saccular aneurysm in the brain to produce thrombosis, used in treating the aneurysm.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.