苛か性せいアルカリMeanings1nouncaustic alkali; lyeTechnical term for a strongly alkaline substance that can cause chemical burns; used in chemistry and industrial contexts.苛か性せいアルカリは取とり扱あつかいに注ちゅう意いが必ひつ要ようです。Caustic alkali requires careful handling.石せっ鹸けんの製せい造ぞうには苛か性せいアルカリが使つかわれることがあります。Caustic alkali is sometimes used in soap production.