1. The yellow pigment in the corpus luteum, in the yolk of eggs, or any lipochrome. 2. SYN: xanthophyll. 3. The dried powdered corpora lutea of the hog, formerly used as a progesterone source. [L. luteus, saffron-yellow]

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lu·tein 'lüt-ē-ən, 'lü-.tēn n an orange xanthophyll C40H56O2 occurring in plants usu. with carotenes and chlorophylls and in animal fat, egg yolk, and the corpus luteum

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2. the yellow pigment of the corpus luteum.

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lu·te·in (looґte-in) [L. luteus yellow] 1. a yellow pigment, or lipochrome, from the corpus luteum, from fat cells, and from the yolk of eggs. It is closely related to xanthophyll. 2. any lipochrome.

Medical dictionary. 2011.

Look at other dictionaries:

  • Lutein — (pronounced|ˈlutiːn) (from Latin lutea meaning yellow ) is one of over 600 known naturally occurring carotenoids. Found in green leafy vegetables such as spinach and kale, lutein is employed by organisms as an antioxidant and for blue light… …   Wikipedia

  • 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] …   The Collaborative International Dictionary of English

  • Luteïn — Luteïn, der gelbe Farbstoff des Eidotters, des Blutplasmas, Blutserums, der mit dem Farbstoff der Maiskörner, mancher Blüten und Staubfäden identisch sein soll …   Meyers Großes Konversations-Lexikon

  • Lutein — ⇒ Xanthophylle …   Deutsch wörterbuch der biologie

  • lutein — lutèīn m <G luteína> DEFINICIJA biol. žuta boja u lišću biljaka i u žumanjku ETIMOLOGIJA lat. luteum: žumanjak + in …   Hrvatski jezični portal

  • lutein — [lo͞ot′ē in] n. [< (CORPUS) LUTE(UM) + IN1] 1. XANTHOPHYLL 2. a preparation of dried and powdered corpus luteum …   English World dictionary

  • Lutein — Strukturformel Allgemeines Name Lutein Andere Namen …   Deutsch Wikipedia

  • Lutein — Lu|te|in 〈n. 11; unz.; Biochem.〉 ein z. B. in grünen Blättern, Eidotter u. Kuhbutter vorkommender, gelber organ. Farbstoff [zu lat. luteus „goldgelb“; zu lutum „Wau“ (Färberpflanze)] * * * Lu|te|in [lat. luteus = gelb, goldgelb; ↑ in (3)], das;… …   Universal-Lexikon

  • lutein — noun Date: 1869 an orange xanthophyll C40H56O2 occurring in plants, animal fat, egg yolk, and the corpus luteum …   New Collegiate Dictionary

  • lutein — /looh tee in/, n. Biochem. 1. Also called xanthophyll. a yellow red, water insoluble, crystalline, carotenoid alcohol, C40H56O2, found in the petals of marigold and certain other flowers, egg yolk, algae, and corpora lutea: used chiefly in the… …   Universalium

  • lutein — noun A yellow carotenoid pigment, widely distributed in both plants and animals. Syn: E161b, food colouring, xanthophyll …   Wiktionary

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