アセタール樹じゅ脂しアセタールじゅしMeanings1nounacetal resinTechnical term for a type of engineering plastic also known as polyoxymethylene (POM).アセタール樹じゅ脂しは機き械かい部ぶ品ひんによく使つかわれる。Acetal resin is often used for mechanical parts.