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Define the word lutein

"Lutein" gcide "The Collaborative International Dictionary of English v.0.48"

Lutein \Lu"te*in\, n. [From corpus luteum.] (Physiol. Chem.)
   A substance of a strongly marked yellow color, extracted from
   the yolk of eggs, and from the tissue of the corpus luteum.
   [1913 Webster]

"lutein" wn "WordNet (r) 2.0"

lutein
     n : yellow carotenoid pigments in plants and animal fats and egg
         yolks [syn: xanthophyll, xanthophyl]