Medical Dictionary

free radical

noun

Medical Definition of FREE RADICAL

:  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 outside (as in tobacco smoke, toxins, or pollutants) and that can damage cells, proteins, and DNA by altering their chemical structure
April 19, 2015
desiccate Hear it
to dry up or become dried up
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