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
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Alcohol damages tissues and triggers the formation of free radicals, which leads to inflammation.
—
Jillian Kubala, Health, 13 Jan. 2025
Vitamin E Vitamin E is a powerful both antioxidant (chemical compounds that fight off damaging molecules known as free radicals in the body) with anti-inflammatory (reduces the body's response to cell damage) properties, which has led to research into its possible role in supporting brain health.
—Sarah Anzlovar, Ms, Rd, Verywell Health, 10 Jan. 2025
That process converts the particles into something known as free radicals, which can damage cells and tissues.
—George Petras, USA TODAY, 10 Jan. 2025
On preventing fine lines and wrinkles, the formula utilizes echinacea plant stem cells, while CoQ10 protects against free radical damage.
—Kiana Murden, Vogue, 9 Jan. 2025
See all Example Sentences for free radical 
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Jillian Kubala, Health, 13 Jan. 2025
Vitamin E Vitamin E is a powerful both antioxidant (chemical compounds that fight off damaging molecules known as free radicals in the body) with anti-inflammatory (reduces the body's response to cell damage) properties, which has led to research into its possible role in supporting brain health.
—Sarah Anzlovar, Ms, Rd, Verywell Health, 10 Jan. 2025
That process converts the particles into something known as free radicals, which can damage cells and tissues.
—George Petras, USA TODAY, 10 Jan. 2025
On preventing fine lines and wrinkles, the formula utilizes echinacea plant stem cells, while CoQ10 protects against free radical damage.
—Kiana Murden, Vogue, 9 Jan. 2025
See all Example Sentences for free radical
Dictionary Entries Near free radical
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“Free radical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/free%20radical. Accessed 18 Jan. 2025.
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