Definition of nocebo in English:

nocebo

noun

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

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

Origin

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

Pronunciation:

nocebo

/nəˈsiːbəʊ/