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
New & Noteworthy Bloom's new Frosted Lemonade Greens are packed with 38 powerhouse ingredients including probiotics, antioxidants, digestive enzymes and fiber.
—
Adam Mills, MSNBC Newsweek, 28 May 2025
Key Takeaways Nutrient-rich: Sunflower seeds are packed with antioxidants, vitamins, and nutrients that can boost energy, reduce inflammation, and support your immune health.
—Cristina Mutchler, Verywell Health, 23 May 2025
Its signature keratin blend strengthens just enough, while guajava fruit extract and antioxidants shield against UV damage and fading.
—Neha Tandon, Glamour, 19 May 2025
This high-quality tea has a distinct flavor and is rich in antioxidants and amino acids linked with numerous health benefits, like preventing cancer and improving cognitive function.1
Coffee is also full of antioxidants.
—Isabel Vasquez Rd Ldn, Health, 15 May 2025
See All Example Sentences for antioxidant
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Adam Mills, MSNBC Newsweek, 28 May 2025
Key Takeaways Nutrient-rich: Sunflower seeds are packed with antioxidants, vitamins, and nutrients that can boost energy, reduce inflammation, and support your immune health.
—Cristina Mutchler, Verywell Health, 23 May 2025
Its signature keratin blend strengthens just enough, while guajava fruit extract and antioxidants shield against UV damage and fading.
—Neha Tandon, Glamour, 19 May 2025
This high-quality tea has a distinct flavor and is rich in antioxidants and amino acids linked with numerous health benefits, like preventing cancer and improving cognitive function.1
Coffee is also full of antioxidants.
—Isabel Vasquez Rd Ldn, Health, 15 May 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 4 Jun. 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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