carotenoid

noun

ca·​rot·​en·​oid kə-ˈrä-tə-ˌnȯid How to pronounce carotenoid (audio)
variants or less commonly carotinoid
: any of various usually yellow to red pigments (such as carotenes) found widely in plants and animals and characterized chemically by a long aliphatic polyene chain composed of eight isoprene units
carotenoid adjective

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Example Sentences

Recent Examples on the Web The wolfberry, also known as goji, is rich in zeaxanthin, an antioxidant, and a carotenoid called lutein, which can help reduce the risk of eye disease. Priscilla Totiyapungprasert, The Arizona Republic, 25 Apr. 2022 Pink seafoods like heart-healthy salmon and shrimp have high levels of a certain carotenoid with antioxidant properties known as astaxanthin. Kelsey Ogletree, Better Homes & Gardens, 10 Feb. 2022 Almonds are the richest in vitamin E, and pistachios have lutein and zeaxanthin, carotenoids important for eye health. SELF, 8 Aug. 2019 Packed with vitamins C and K, folate, potassium and fiber, spinach is also an exceptionally rich source of three carotenoids — beta-carotene, lutein, and zeaxanthin. Darlene Zimmerman, Detroit Free Press, 21 Dec. 2019 John Erdman, a nutrition scientist at the University of Illinois who has spent much of his career studying carotenoids, agrees with Hammond. Daphne Miller, Washington Post, 23 Sep. 2019 But leaves also contain other chemicals like carotenoids, anthocyanins and flavonols. Emily Goodykoontz | The Oregonian/oregonlive, oregonlive, 20 Oct. 2019 Pigments called carotenoids and anthocyanins are responsible for fall colors. cleveland, 14 Oct. 2019 Cooking also makes the carotenoid more bioavailable. Daphne Miller, Washington Post, 23 Sep. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'carotenoid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Word History

First Known Use

1911, in the meaning defined above

Time Traveler
The first known use of carotenoid was in 1911

Dictionary Entries Near carotenoid

Cite this Entry

“Carotenoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carotenoid. Accessed 25 Sep. 2022.

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Medical Definition

carotenoid

noun

ca·​rot·​en·​oid
variants also carotinoid
: any of various usually yellow to red pigments (as carotenes) found widely in plants and animals and characterized chemically by a long aliphatic polyene chain composed of eight isoprene units

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