placebo

美 [pləˈsiboʊ]
英 [pləˈsiːbəʊ]
  • n.安慰剂；晚祷悼声[丧歌]；安慰剂效应
复数：placebos  复数：placeboes  

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英英

placebo
n.
1.
安慰剂，安慰药（给无实际治疗需要者或试验药物时用）a substance that has no physical effects, given to patients who do not need medicine but think that they do, or used when testing new drugs
the placebo effect(= the effect of taking a placebo and feeling better)
安慰剂效应