activity, allowance, antisepsis, artificial radioactivity, color, contamination, curiage, disinfection, disinfestation, extenuating circumstances, extenuation, extenuative, fallout, flash pasteurization, fumigation, gilding, gloss, half-life, hygenics, hygiene, mitigation, natural radioactivity, nuclear radiation, palliation, palliative, pasteurization, qualification, radiant energy, radiation, radioactive radiation, radioactivity, radiocarbon dating, radiolucency, radiopacity, radiosensibility, radiosensitivity, sanitation, saturation point, softening, specific activity, sterilization, varnish, whitewash, whitewashing

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