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Definition placebo in British English

placebo noun

[countable] noun
/pləˈsiːbəʊ/
1

a substance that is not medicine but that a patient who is taking it believes is medicine, and so they get better

Synonyms and related words
1.1

a substance that is not a medicine, used as a standard of comparison in testing the effectiveness of a new medicine

Synonyms and related words
Definition placebo in British English