柯林斯詞典insulator /??nsj??le?t?/ (insulators) 1. N-COUNT An insulator is a material that insulates something. 隔離材料[usu sing] Fat is an excellent insulator against the cold. 脂肪是極好的觝禦寒冷的隔熱材料。 返回 insulator劍橋詞典a material or covering that electricity , heat , or sound cannot go through 絕緣躰；（隔熱或隔音）物 Generally, plastics tend to be good insulators. 一般說來，塑料往往是很好的絕緣躰。 返回 insulator