cindexcinerin./sin-er-in/US // ˈsɪn ər ɪn //UK // (ˈsɪnərɪn) //灰烬Definitionsn.noun · 名词1. Chemistry.›either of two oily, liquid compounds, C20H28O3 or C21H28O5, used as insecticides.Level 3More words in c →