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

Examples of carotenoid in a Sentence

Recent Examples on the Web
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Although vegan diets are likely high in vitamin A carotenoids, without adequate zinc, vitamin A levels may be low. David Faris, Newsweek, 3 Nov. 2024 These carotenoids specifically accumulate in a part of the retina called the macula. Jillian Kubala, Health, 31 Oct. 2024 For example, carotenoids are the phytochemicals found in yellow and orange fruits and vegetables. Sara Novak, Discover Magazine, 16 Oct. 2024 Chlorophyll gives leaves a green color, so when these pigments are not visible, carotenoids, which produce yellow, orange and brown colors, show through, according to the Virginia Department of Forestry. Laura Daniella Sepulveda, The Arizona Republic, 10 Oct. 2024 See all Example Sentences for carotenoid 

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 14 Nov. 2024.

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
carotenoid adjective

More from Merriam-Webster on carotenoid

Last Updated: - Updated example sentences
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