bilirubinoid

[bĭl′ĭ-rōōbə-noid′]
n.
  1. Any of various intermediate chemical substances, usually found in urine and feces, produced during the conversion of bilirubin to stercobilin through the action of reductive enzymes in intestinal bacteria.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.