Synonyms and related words :
contamination, curiage, decontamination, emanation, fallout, half-life, highlight, illumination, irradiance, irradiancy, irradiation, light, light source, luminous energy, natural radioactivity, nuclear radiation, photosensitivity, radiance, radiancy, radiation, radioactive radiation, radioactivity, radiocarbon dating, radiolucency, radiopacity, radiosensibility, radiosensitivity, saturation point, sidelight, specific activity, visible radiation