Gerund meaning the act or process of removing contaminants; treated as an uncountable noun.
The decontaminating of the laboratory took several hours.
La décontamination du laboratoire a pris plusieurs heures.
decontaminatinggerund / present participle Used attributively to describe something that removes contaminants.
The decontaminating solution was applied to the affected area to ensure it was safe for use.
La solution décontaminante a été appliquée sur la zone touchée pour garantir qu’elle soit sans danger.