antioxidant
noun
an·ti·ox·i·dant
ˌan-tē-ˈäk-sə-dənt 
ˌan-ˌtī-
: a substance (such as beta-carotene or vitamin C) that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals
antioxidant
adjective
Examples of antioxidant in a Sentence
Recent Examples on the Web
Nutritional psychiatry: Diets rich in omega-3 fatty acids, antioxidants, and whole foods can have profound impacts on mood regulation.
—
Jesse Pines, Forbes, 12 Mar. 2025
Powered by a blend of nourishing antioxidants, this lightweight formula offers superior protection from UVA, UVB, and infrared rays while boosting your skin’s defense against pollution and blue light.
—Kiana Murden, Vogue, 10 Mar. 2025
Pomegranate Juice Pomegranate juice is a good source of antioxidants, vitamin K, and potassium.
—Elizabeth Barnes, Verywell Health, 4 Mar. 2025
Britannica also reports that matcha has a high level of antioxidants, which may help alleviate stress and aid in reducing blood pressure.
—Lauryn Jiles, Miami Herald, 3 Mar. 2025
See All Example Sentences for antioxidant
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Jesse Pines, Forbes, 12 Mar. 2025
Powered by a blend of nourishing antioxidants, this lightweight formula offers superior protection from UVA, UVB, and infrared rays while boosting your skin’s defense against pollution and blue light.
—Kiana Murden, Vogue, 10 Mar. 2025
Pomegranate Juice Pomegranate juice is a good source of antioxidants, vitamin K, and potassium.
—Elizabeth Barnes, Verywell Health, 4 Mar. 2025
Britannica also reports that matcha has a high level of antioxidants, which may help alleviate stress and aid in reducing blood pressure.
—Lauryn Jiles, Miami Herald, 3 Mar. 2025
See All Example Sentences for antioxidant
Cite this Entry
“Antioxidant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antioxidant. Accessed 22 Mar. 2025.
Copy CitationKids Definition
antioxidant
noun
an·ti·ox·i·dant
ˌant-ē-ˈäk-səd-ənt
ˌan-ˌtī-
: a substance that opposes oxidation or prevents or makes difficult reactions made easier by oxygen
Medical Definition
antioxidant
noun
an·ti·ox·i·dant
ˌant-ē-ˈäk-səd-ənt, ˌan-ˌtī-
: any of various substances (as beta-carotene, vitamin C, and alpha-tocopherol) that inhibit oxidation or reactions promoted by oxygen and peroxides and that include many held to protect the living body from the deleterious effects of free radicals
antioxidant
adjective
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