• WordNet 3.6
    • n bilirubin an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice
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Webster's Revised Unabridged Dictionary
    • n Bilirubin (Physiol) A reddish yellow pigment present in human bile, and in that from carnivorous and herbivorous animals; the normal biliary pigment.
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Century Dictionary and Cyclopedia
    • n bilirubin A red bile-pigment, the chief coloring matter of human bile and that of carnivorous animals, to which the formula C16H18N2O3 has been given. When isolated it forms an orange-red powder or red rhombic prisms. It is insoluble in water, little soluble in alcohol and ether, but readily soluble in chloroform or alkalis.
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Webster's Revised Unabridged Dictionary
L. bilis, biel + ruber, red


In news:

' Jaundice ' (JAWN-diss) is a yellow-orange discoloration of the skin and the whites of the eyes caused by the buildup of a substance called 'bilirubin' (bil-ih-ROO-bun).
Bilirubin is a pigment derived from hemoglobin (HEE-muh-globe-un), which is the oxygen-carrying protein of red blood cells.
Medications that contain a high amount of sodium benzoate should also be avoided because benzoate can displace bilirubin from its binding site.