beta-carotene

noun

be·​ta-car·​o·​tene ˈbā-tə-ˈker-ə-ˌtēn How to pronounce beta-carotene (audio)
-ˈka-rə-
: an isomer of carotene found in dark green and dark yellow vegetables and fruits

Examples of beta-carotene in a Sentence

Recent Examples on the Web
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The plant is loaded with vitamins A, C and K, folate, calcium and potassium, plus prebiotic fiber (inulin, mostly in the roots) and antioxidants like beta-carotene and polyphenols. Ryan Brennan, Charlotte Observer, 30 Apr. 2026 Dandelions are also known to contain prebiotic fiber (inulin, primarily in the roots) along with antioxidants like beta-carotene, polyphenols and flavonoids. Ryan Brennan, Sacbee.com, 30 Apr. 2026 Goji Berries Goji berries have a unique bright orange-red color thanks to zeaxanthin and beta-carotene, two antioxidants that protect the eyes and skin from oxidative stress and UV damage. Lauren Panoff, Verywell Health, 30 Apr. 2026 Dandelions also contain prebiotic fiber — primarily inulin, found in the roots — along with antioxidants including beta-carotene, polyphenols and flavonoids. Ryan Brennan, Fort Worth Star-Telegram, 30 Apr. 2026 See All Example Sentences for beta-carotene

Word History

First Known Use

1934, in the meaning defined above

Time Traveler
The first known use of beta-carotene was in 1934

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Cite this Entry

“Beta-carotene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/beta-carotene. Accessed 5 May. 2026.

Kids Definition

beta-carotene

noun
be·​ta-car·​o·​tene
-ˈkar-ə-ˌtēn
: a form of carotene found in dark green and dark yellow vegetables and fruits

Medical Definition

beta-carotene

noun
be·​ta-car·​o·​tene
variants or β-carotene
: a reddish-orange pigment that is an an isomer of carotene found chiefly in orange and dark green and yellow vegetables and fruits (such as carrots, sweet potatoes, and spinach) and that is converted to vitamin A in the body

Note: Beta-carotene is the most active and widespread provitamin A and is derived commercially from natural sources or is prepared synthetically.

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