English dictionary



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English noun: free radical

1. free radical (substance) an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule


SamplesIn the body free radicals are high-energy particles that ricochet wildly and damage cells.


Synonymsradical


Broader (hypernym)atom









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