Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Bilirubin
open-in-new
<p>Bilirubin (BR) (adopted from German, originally bili—bile—plus ruber—red—from <a href="/facts/Latin/pM3Kge85">Latin</a>) is a red-orange compound that occurs in the normcomponent of the straw-yellow color in urine. Another breakdown product, <a href="/facts/Stercobilin/mLkQfB66">stercobilin</a>, causes the brown color of feces. </p><p>Although bilirubin is usually found in animals rather than plants, at least one plant species, <i><a href="/facts/Strelitzia_nicolai/0cGESQmq">Strelitzia nicolai</a></i>, is known to contain the pigment. </p>