Xanthophyll
Pronunciation : Xan"tho*phyll
Part of Speech : n.
Definition : Defn: A yellow coloring matter found in yellow autumn leaves, and also produced artificially from chlorophyll; -- formerly called also phylloxanthin.
[Xantho- + Gr. fy`llon leaf.] (Bot.)
Source : Webster's Unabridged Dictionary, 1913