perastatateWiktionary 原文英美构词拆解perper-前缀astatateastatate词干per-(unproductive) In verbs: denoting the sense "through", as in perforate. · (unproductive) In verbs: denoting the sense "thoroughly", as in perfect.词源说明From per- + astatate.释义名词noun1(inorganic chemistry) The anion AtO4-; any salt containing this anion