nocebo [noun]

Definition of nocebo:

1. A substance which a patient experiences as harmful due to a previous negative perception, but which is in fact pharmacologically (medicinally) inactive.

2. A substance that causes undesirable side effects as a result of a patient's perception that it is harmful rather than as a result of a causative ingredient.

Synonyms of nocebo:


Opposite/Antonyms of nocebo:

Sentence/Example of nocebo:

1. The nocebo effect is one that turns on the expectations of no benefit or even negative changes.

2. These are not the same as nocebo effects, which are the responses to a substance believed by the subject to be able to cause harm.