the complete or partial removal of contamination by a deliberate physical, chemical or biological process, removal or reduction of radioactive contamination, a process used to reduce, remove, or neutralize radiological, chemical, or biological contamination to reduce the risk of exposure, the process of removing or reducing radioactive contamination from a person, object or area, täielik või osaline tuumasaaste eemaldamine kasutades teadlikult füüsikalisi, keemilisi või bioloogilisi protsesse