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free radical

noun
/ˌfriː ˈrædɪkl/
/ˌfriː ˈrædɪkl/
(chemistry化学)
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  1. an atom or group of atoms that has an electron that is not part of a pair, causing it to take part easily in chemical reactions. Free radicals in the body are thought to be one of the causes of diseases such as cancer.自由基;游离基 see also antioxidant (1)

See also: free radical


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