Try Our Apps


Supposedly vs. Supposably


or xanthophyl

[zan-thuh-fil] /ˈzæn θə fɪl/
noun, Biochemistry
lutein (def 1).
Origin of xanthophyll
1830-40; < French xanthophylle. See xantho-, -phyll
Related forms
xanthophyllous, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for xanthophyll
Historical Examples
  • 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
  • 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
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
Cite This Source
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.
Cite This Source

Word of the Day

Difficulty index for xanthophyll

Few English speakers likely know this word

Word Value for xanthophyll

Scrabble Words With Friends

Nearby words for xanthophyll