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Free radical
(redirected from Radical (chemistry))

    Also found in: Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.18 sec.
free radical
n.
1. An uncharged atom or group of atoms having at least one unpaired electron, which makes it highly reactive.
2. An organic compound having some unpaired valence electrons; a normal byproduct of oxidation reactions in metabolism.
Free radical
An unstable molecule that causes oxidative damage by stealing electrons from surrounding molecules, thereby disrupting activity in the body's cells.
Mentioned in: Smoking
free radical,
n a compound with an unpaired electron or proton. It is unstable and reacts readily with other molecules.
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