bil·i·ru·bin (bĭl'ĭ-rū'bĭn, bĭl'ĭ-rū'-)
n.
A reddish-yellow bile pigment, C₃₃H₃₆N₄O₆, derived from the degradation of heme.

[Latin bīlis, bile + ruber, red + -IN.]

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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