Meaning of nocebo in English:


Pronunciation /nəˈsiːbəʊ/

Translate nocebo into Spanish


  • A detrimental effect on health produced by psychological or psychosomatic factors such as negative expectations of treatment or prognosis.

    ‘Because of ethical concerns, nocebos are not commonly used in medical practice or research.’
    • ‘Section Four, ‘Essays and Commentaries,’ examines aromatherapy and essential oils and homeopathy, the placebo effect, and herbs as a token and nocebos.’
    • ‘It is also worth noting that the placebo has a negative counterpart - called a nocebo.’


1960s from Latin, literally ‘I shall cause harm’, from nocere ‘to harm’, on the pattern of placebo.