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Medical Dictionary

placebo

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noun pla·ce·bo \plə-ˈsē-(ˌ)bō\

Medical Definition of placebo

plural placebos

  1. 1:  a usually pharmacologically inert preparation prescribed more for the mental relief of the patient than for its actual effect on a disorder

  2. 2:  an inert or innocuous substance used especially in controlled experiments testing the efficacy of another substance (as a drug)





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