汚お染せん除じょ去きょ

noun

decontamination

Technical and formal term for removing contamination, especially radioactive, chemical, or biological hazards.

• 事じ故こ後ご、広こう範はん囲いの汚お染せん除じょ去きょが行おこなわれた。

  After the accident, extensive decontamination was carried out.

• 汚お染せん除じょ去きょ作さ業ぎょうには特とく別べつな装そう備びが必ひつ要ようだ。

  Special equipment is needed for decontamination work.