Free-radical meaning

An atom or molecule having at least one unpaired electron: free radicals are typically very reactive and unstable, and can damage healthy tissue cells.
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An atom or group of atoms that has at least one unpaired electron and is therefore unstable and highly reactive. In animal tissues, free radicals can damage cells and are believed to accelerate the progression of cancer, cardiovascular disease, and age-related diseases.
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An atom or group of atoms that has at least one unpaired electron and is therefore unstable and highly reactive. In animal tissues, free radicals can damage cells and are believed to accelerate the progression of cancer, cardiovascular disease, and age-related diseases.
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An atom or group of atoms that has at least one unpaired electron and is therefore unstable and highly reactive. In animal tissues, free radicals can damage cells and are believed to accelerate the progression of cancer, cardiovascular disease, and age-related diseases.
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(chemistry, physics) A molecule, ion or atom that has one or more unpaired electrons, and which is generally highly reactive (therefore often occurs only as a transient species).
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Sentence Examples

  • It is very effective at fighting free-radical damage caused by oxidative stress when taken internally and applied topically.

  • Rutin -- A citrus bioflavonoid that prevents free radical damage.

  • Low-density polythene is also often protected by carbon black which absorbs the ultraviolet light which causes free radical production (see p.54 ).

  • How are such small amounts of vitamin E able to protect cell membranes against sustained free radical attack?

  • citrus bioflavonoid that prevents free radical damage.

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Words near free-radical in the Dictionary