Two or more radical species reacting to form non-radical products; the nighttime reaction of nitrogen dioxide radical with ozone to produce neutral nitrogen pentoxide is an example of radical termination: NO2 + O3 ---> NO3 + O2 then NO2 + NO3 ---> N2O5 | [Atmospheric Environment; v16; 113-120; 1982.] [Atmospheric Environment; v40.1189-1198; 2006.] [
