ceroanWiktionary 原文英美构词拆解cercerium词干oan-oan后缀-oanUsed to convert the name of an atom or ion to an adjective that means containing cations or anions of that atom or ion.词源说明From cerium + -oan.释义形容词adjective1(mineralogy) Containing trivalent cerium.同族词相关词 1cerian