sedation

sedation
noun
  1. [mass noun]the administering of a sedative drug to produce a state of calm or sleep
    镇静状态,施以镇静剂
    he was distraught with grief and under sedation.
    他悲痛欲狂,已服用了镇静剂。
    ■a state of calm or sleep produced by a sedative drug
    (镇静剂引发的)平静(或睡眠)状态
语源
  1. mid 16th cent.: from French sédation or Latin sedatio(n-), from sedare 'settle' (see sedate)
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