free radical
noun
: an especially reactive atom or group of atoms that has one or more unpaired electrons
especially
: one that is produced in the body by natural biological processes or introduced from an outside source (such as tobacco smoke, toxins, or pollutants) and that can damage cells, proteins, and DNA by altering their chemical structure
Examples of free radical in a Sentence
Recent Examples on the Web
The formula also provides extra protection with the brand’s proprietary Cell-Ox Shield technology, which pairs UV filters with antioxidants that serve as a secondary line of defense against free radical damage.
—
Deanna Pai, Vogue, 3 Apr. 2024
And with a boost of antioxidants from La Roche-Posay’s signature thermal spring water, the face serum makes skin more resilient, protecting it from free radicals and environmental aggressors alike.
—Danielle Cohen, Glamour, 3 Apr. 2024
This serum is made with vitamin C and a powerful antioxidant complex that combats free radicals.
—Barbara Bellesi Zito, Travel + Leisure, 15 Mar. 2024
Vitamin E: Vitamin E can help protect the skin from damage caused by free radicals.
—Amber Smith, Discover Magazine, 6 Nov. 2023
Almonds, for example, are packed with vitamin E, a potent antioxidant that protects the skin from free radical damage and promotes cell regeneration.
—Daphne Ewing-Chow, Forbes, 29 Feb. 2024
Fueled by exposure to air, light, and heat, unsaturated fats break down and release free radicals.
—Ali Francis, Bon Appétit, 12 Mar. 2024
Several studies show that vitamin C protects and improves skin, helping neutralize free radicals that cause oxidative skin stress, leading to premature aging and reducing the appearance of fine lines and wrinkles.
—Kate Donnelly, Forbes, 29 Feb. 2024
Antioxidants help neutralize the free radicals in our bodies which, when imbalanced, can cause cell damage and lead to disease.
—Clare Mulroy, USA TODAY, 16 Jan. 2024
Deanna Pai, Vogue, 3 Apr. 2024
And with a boost of antioxidants from La Roche-Posay’s signature thermal spring water, the face serum makes skin more resilient, protecting it from free radicals and environmental aggressors alike.
—Danielle Cohen, Glamour, 3 Apr. 2024
This serum is made with vitamin C and a powerful antioxidant complex that combats free radicals.
—Barbara Bellesi Zito, Travel + Leisure, 15 Mar. 2024
Vitamin E: Vitamin E can help protect the skin from damage caused by free radicals.
—Amber Smith, Discover Magazine, 6 Nov. 2023
Almonds, for example, are packed with vitamin E, a potent antioxidant that protects the skin from free radical damage and promotes cell regeneration.
—Daphne Ewing-Chow, Forbes, 29 Feb. 2024
Fueled by exposure to air, light, and heat, unsaturated fats break down and release free radicals.
—Ali Francis, Bon Appétit, 12 Mar. 2024
Several studies show that vitamin C protects and improves skin, helping neutralize free radicals that cause oxidative skin stress, leading to premature aging and reducing the appearance of fine lines and wrinkles.
—Kate Donnelly, Forbes, 29 Feb. 2024
Antioxidants help neutralize the free radicals in our bodies which, when imbalanced, can cause cell damage and lead to disease.
—Clare Mulroy, USA TODAY, 16 Jan. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'free radical.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Free radical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/free%20radical. Accessed 24 Apr. 2024.
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