The act or practice of ending the life of an individual suffering from a terminal illness or an incurable condition,as by lethal injection or the suspension of extraordinary medical treatment.

• 安乐死个别患者因病情到了晚期或不治之症，不愿再受病痛折磨而采取的了结生命的措施，一般采用注射致命物质或中断特殊治疗方法