Meaning of placebo
Pronunciation: (plu-sē'bō for 1 plä-chā'bō for 2), [key]
— pl. -bos, -boes.
- a substance having no pharmacological effect but given merely to satisfy a patient who supposes it to be a medicine.
- a substance having no pharmacological effect but administered as a control in testing experimentally or clinically the efficacy of a biologically active preparation.
- the vespers of the office for the dead: so called from the initial word of the first antiphon, taken from Psalm 114:9 of the Vulgate.
- placebo (Thesaurus)