[lōō′kə-tăksēn′, -sĭn]
  1. A crystalline nitrogenous material produced in injured, acutely degenerating tissue and found in inflammatory exudates that increases the permeability of capillaries and the migration of white blood cells.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.