cetrimoniumWiktionary 原文英美构词拆解cetyl词干+trimethyl词干+-onium后缀‘quaternary ammonium compound’-onium(particle physics) Designating an onium particle.释义名词noun1(pharmacology) The cetyltrimethylammonium radical.同族词派生词 3cetrimide·cetrimonium bromide·cetrimonium chloride