Meaning of lutein in English:


Pronunciation /ˈluːtɪɪn/


mass nounBiochemistry
  • A deep yellow pigment of the xanthophyll class, found in the leaves of plants, in egg yolk, and in the corpus luteum.

    ‘Companies don't usually test for phytochemicals like lutein or lycopene because they're not yet considered nutrients.’
    • ‘In this study, visual function is improved with lutein alone or lutein together with other nutrients.’
    • ‘While the root of the beet is a nutritional powerhouse, the leaves are just as potent, containing antioxidant carotenoids, chlorophyll and lutein.’
    • ‘The yellow colour comes largely from carotenoids, which hens get from plant foods, or lutein, which is added to feeds specifically to colour egg yolk.’
    • ‘Cataract patients also tend to be deficient in vitamin A and the carotenes, lutein and zeaxanthin.’


Mid 19th century from Latin luteum ‘yolk of egg’ (neuter of luteus ‘yellow’) + -in.