- a preparation of dried and powdered corpus luteum
Origin of lutein; from (corpus) lute(um) + -in
- A yellow-orange xanthophyll carotenoid, C40H56O2, that occurs naturally in green plants and in the fat of plant-eating animals, egg yolk, the corpus luteum, and the retina, and that is being investigated as a treatment for macular degeneration.
- A dried preparation of corpus luteum.
Origin of luteinLatin l&umacron;teum, yellow, egg yolk (from neuter of l&umacron;teus, yellow, from l&umacron;tum, yellowweed) + –in.