noun. yellow carotenoid pigments in plants and animal fats and egg yolks.
1. Noun, singular or mass Cucumber skin gets some of its rich green color from lutein, an antioxidant carotenoid associated with eye health. 2. Verb, non-3rd person singular present Eggs have memory-enhancing choline and eye health promoters lutein and zeaxanthin. 3. Adjective According to the Journal of Nutrition, the pistachio nut is high in compounds lutein and beta-carotene, which serve as healthy benefactors in eye health.