| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024lu•te•in (lo̅o̅′tē in),USA pronunciation n. [Biochem.]- BiochemistryAlso 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 biochemical study of the carotenoids.
- Biochemistrya preparation consisting of dried and powdered corpora lutea from hogs.
- Latin lūte(um) yolk of an egg (noun, nominal use of neuter of lūteus yellow; see luteous) + -in2
- 1865–70
Collins Concise English Dictionary © HarperCollins Publishers:: lutein /ˈluːtɪɪn/ n - a xanthophyll pigment, occurring in plants, that has a light-absorbing function in photosynthesis
Etymology: 20th Century: from Latin lūteus yellow + -in |