free_radical has definitions from the fields of chemistry,physics
[ noun ] (chemistry,physics) an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule than has lost an electron and will stabilize itself by stealing an electron from a nearby molecule




"in the body free radicals damage cells"

Used in print

(Francis J. Johnston and John E. Willard, "The...)

It would appear that it should be possible to determine unique mechanisms for the thermal and photochemical_reactions in both the liquid and gas phases and to determine values for activation_energies of some of the intermediate reactions of atoms and free_radicals , as_well_as information on the heat_of_dissociation of the carbon halogen bond .

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