[with obj.]reject as invalid, especially by legal procedure 废止;宣布无效 his conviction was quashed on appeal. 上诉后他的判决被撤销。 ■put an end to; suppress 结束,终止;镇压,平息 a hospital executive quashed rumours that nursing staff will lose jobs. 一位医院管理人员平息了护理人员将要失业的谣言。
语源
Middle English: from Old French quasser 'annul', from late Latin cassare (medieval Latin also quassare), from cassus 'null, void'. Compare with squash