Definition of placebo effect in English:

placebo effect

Syllabification: pla·ce·bo ef·fect


  • A beneficial effect, produced by a placebo drug or treatment, that cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient’s belief in that treatment.
    More example sentences
    • This raises the question of whether treatment causes a placebo effect, perhaps because of the extra time spent with patients.
    • The incidence also explains the powerful placebo effect of some treatments.
    • This may be attributed to a high placebo effect and the large number of poorly controlled trials in women without a pretrial diagnosis of premenstrual syndrome.

More definitions of placebo effect

Definition of placebo effect in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
a small amount; a little