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

By pressing your thumb to the back of the watch, the watch can measure the level of carotenoids in your body via the pigment in your skin. —Maggie Ryan, Flow Space, 24 July 2025

Both also contain high levels of the carotenoids beta-carotene, lutein, and zeaxanthin and are excellent sources of fiber. —Hannah Coakley, Verywell Health, 21 July 2025

Grapefruit is a great source of carotenoids, and fiber, which helps supports digestion. —Dr. Samanta Dall’agnese, CNBC, 18 July 2025

Improves Skin Appearance Goji berries provide powerful antioxidants, including polysaccharides, flavonoids, carotenoids, and phenols. —Lindsey Desoto, Health, 28 July 2025

Word History

First Known Use

1911, in the meaning defined above

Rhymes for carotenoid

• albuminoid
• arytenoid
• cannabinoid
• epidermoid
• epithelioid
• meteoroid
• paraboloid
• subarachnoid
• underemployed
• adenoid
• alkaloid
• amoeboid

Medical Definition

carotenoid

noun

ca·​rot·​en·​oid

variants also carotinoid

kə-ˈrät-ᵊn-ˌȯid 

: 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