oxadiazineWiktionary 原文英美构词拆解oxaoxa-前缀diazinediazine词干oxa-(organic chemistry) Used to name compounds in which a carbon atom (typically a methylene group) has been replaced by one of oxygen释义名词noun1(organic chemistry) An unsaturated six-membered heterocycle having three carbon atoms, one oxygen atom, two nitrogen atoms and two double bonds同族词派生词 1benzoxadiazine