xanthophyll


From The Collaborative International Dictionary of English v.0.48:

Xanthophyll \Xan"tho*phyll\, n. [Xantho- + Gr. fy`llon leaf.]
   (Bot.)
   A yellow coloring matter found in yellow autumn leaves, and
   also produced artificially from chlorophyll; -- formerly
   called also phylloxanthin.
   [1913 Webster]
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