propanoicWiktionary 原文英美构词拆解propanpropane词干oic-oic后缀-oic(organic chemistry) used to form the names of carboxylic groups and acids词源说明From propane + -oic.释义形容词adjective1Of or pertaining to propanoic acid or its derivatives; propionic同族词派生词 1oxopropanoic