American Heritage Dictionary
(4)
Century Dictionary
(3)
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
If homeopathy demonstrably was better than placebo, that is indeed worth reporting.— Citizendium, the Citizens' Compendium - Recent changes [en]
An example of a placebo is a pill containing sugar instead of the drug or other substance being studied.— Citizendium, the Citizens' Compendium - Recent changes [en]
THE word placebo itself originated from the Latin for "I will please".
[23] [24] When guidelines suggest a placebo is an unethical control, then an "active-control noninferiority trial" may be used.— Citizendium, the Citizens' Compendium - Recent changes [en]
They discuss that as long as the placebo is as effective as the treatment, why not consider it.— Citizendium, the Citizens' Compendium - Recent changes [en]

American Heritage Dictionary (1)
Century Dictionary (1)
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