防ぼう汚お剤ざいぼうおざいMeanings1nounantifoulant; antifouling agentTechnical term used in marine, industrial, and coating contexts to refer to substances that prevent fouling (e.g., on ship hulls).船せん底てい塗と料りょうには防ぼう汚お剤ざいが含ふくまれている。Antifouling agents are included in ship-bottom paint.