waste disposal
noun [ C ] UK uk/ˈweɪst dɪˌspəʊ.zəl/ us/ˈweɪst dɪˌspoʊ.zəl/ (US garbage disposal)
（安装于厨房水槽下方用于切碎食物垃圾的）废物处理机
an electrical machine, connected to a kitchen sink, that cuts up food waste so that it will flow easily through the pipes