- a reddish bile pigment, C33H36O6N4, resulting from the degradation of heme by reticuloendothelial cells in the liver: a high level in the blood produces the yellow skin symptomatic of jaundice.
Origin of bilirubin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bilirubin
The modern view of hmatogenous jaundice had its origin in the supposed discovery of the identity of hmatoidin with bilirubin.
The union of bilirubin and lime salts illustrates the same principle.
Bilirubin is soluble in alkalies, and is precipitated from its solution by acids.
It may assume a greenish hue after standing, owing to oxidation of bilirubin into biliverdin.A Manual of Clinical Diagnosis
James Campbell Todd
- an orange-yellow pigment in the bile formed as a breakdown product of haemoglobin. Excess amounts in the blood produce the yellow appearance associated with jaundice. Formula: C 32 H 36 O 6 N 4
C19: from bile 1 + Latin ruber red + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for bilirubin
Online Etymology Dictionary, © 2010 Douglas Harper
- A red bile pigment derived from the degradation of hemoglobin during the normal and abnormal destruction of red blood cells.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A reddish-yellow pigment that is a constituent of bile and gives it its color. Bilirubin is a porphyrin derived from the degradation of heme. It is often a constituent of gallstones, and also causes the skin discoloration seen in jaundice. Chemical formula: C33H36N4O6.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.