1. 安定药：ataralgesia 安神止痛 | ataraxic 安定药 | atavism 隔代遗传

2. 镇静剂, 安定药 镇静剂的：ataraxia || 心神安宁, 不动心 | ataraxic || 镇静剂, 安定药 镇静剂的 | ataraxy || 心气和平,心神安定

3. 心气和平的：ataraxia /心神安定/ | ataraxic /心气和平的/ | atavism /隔代遗传/祖型再现/

1. tending to soothe or tranquilize

    e.g. valium has a tranquilizing effect
           took a hot drink with sedative properties before going to bed

    Synonym: ataracticsedativetranquilizingtranquillizingtranquilisingtranquillising