n. Any of various hydroxy, carbonyl or carboxylic acid derivatives of carotenes.
n. Alternative name for lutein.
the GNU version of the Collaborative International Dictionary of English
n. A yellow coloring matter found in yellow autumn leaves, and also produced artificially from chlorophyll; -- formerly called also phylloxanthin.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. yellow carotenoid pigments in plants and animal fats and egg yolks
Word Usage
"The traditional air-aging of flour had a visible side effect: the yellowish flour becomes progressively paler as the xanthophyll pigments are oxidized to a colorless form."