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or xanthophyl

[zan-thuh-fil] /ˈzæn θə fɪl/
noun, Biochemistry.
lutein (def 1).
Origin of xanthophyll
From the French word xanthophylle, dating back to 1830-40. See xantho-, -phyll
Related forms
xanthophyllous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for xanthophyll
Historical Examples
  • xanthophyll: the yellow of autumn leaves; one of the substances found in the blood of insects.

  • To separate the carotin from xanthophyll place the ether solution in a small open dish and evaporate to a small volume.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
  • It is unlike carotin and xanthophyll in that it has basic properties, forming salts with acids, which are blue in color.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
British Dictionary definitions for xanthophyll


any of a group of yellow carotenoid pigments occurring in plant and animal tissue
Derived Forms
xanthophyllous, adjective
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
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xanthophyll in Science
Any of various yellow pigments occurring in the leaves of plants and giving young shoots and late autumn leaves their characteristic color. This color is masked by chlorophyll when the leaf is mature. Xanthophylls aid in the absorption of light by capturing certain wavelengths not captured by chlorophyll and rapidly transferring the energy to chlorophyll by boosting one of its electrons to a higher energy level. Xanthophylls are carotenoids, differing from carotenes in having one or more oxygen-containing groups attached. See also carotene.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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