carotenoid
noun
ca·rot·en·oid
kə-ˈrä-tə-ˌnȯid 
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
Sweet Potatoes Have More Vitamin A Some plant foods contain carotenoids.
—
Merve Ceylan, Health, 13 Nov. 2025
In warm-toned carotenoids, cellulose was first produced, harvested, and purified, and then soaked in separate cultures that produced pigments.
—Mrigakshi Dixit, Interesting Engineering, 12 Nov. 2025
When chlorophyll is stored during the fall and winter, what’s left are the reds, oranges, and purples of fall that leaves get from compounds called carotenoids and anthocyanins, the travel website noted.
—Saleen Martin, USA Today, 7 Nov. 2025
Good for Eye Health Carrots provide ample amounts of beta-carotene and other carotenoids known to protect eye health.
—Barbie Cervoni, Verywell Health, 7 Nov. 2025
See All Example Sentences for carotenoid
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Merve Ceylan, Health, 13 Nov. 2025
In warm-toned carotenoids, cellulose was first produced, harvested, and purified, and then soaked in separate cultures that produced pigments.
—Mrigakshi Dixit, Interesting Engineering, 12 Nov. 2025
When chlorophyll is stored during the fall and winter, what’s left are the reds, oranges, and purples of fall that leaves get from compounds called carotenoids and anthocyanins, the travel website noted.
—Saleen Martin, USA Today, 7 Nov. 2025
Good for Eye Health Carrots provide ample amounts of beta-carotene and other carotenoids known to protect eye health.
—Barbie Cervoni, Verywell Health, 7 Nov. 2025
See All Example Sentences for carotenoid
Cite this Entry
“Carotenoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carotenoid. Accessed 23 Nov. 2025.
Copy CitationMedical 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
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