sedation
noun [ U ] medical specialized uk/siˈdeɪ.ʃen/ us/səˈdeɪ.ʃen/
（使用药物或其他手段）使…镇静
the use of a drug or other means to make someone calm or to make them go to sleep
Sedation is often given to allow a patient to be comfortable during a surgical or medical procedure. 病人在接受手术或其他医学处理时，通常会给予镇静剂使之感觉舒服。
She's under strong sedation and should not be disturbed. 她服了强效镇静药，不宜被打扰。