pyroneWiktionary 原文英美构词拆解pyrpyro-前缀one-one后缀pyro-Fire, heat. · Fever.-onea ketone · any similar compound containing a carbonyl functional group词源说明From pyro- + -one.释义名词noun1(organic chemistry) Any of a class of cyclic chemical compounds that contain an unsaturated six-membered ring with two double bonds, one oxygen atom and a ketone functional group.同族词