Definitions for placebopləˈsi boʊ for 1; plɑˈtʃeɪ boʊ for 2

This page provides all possible meanings and translations of the word placebo

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. placebo(noun)

    an innocuous or inert medication; given as a pacifier or to the control group in experiments on the efficacy of a drug

  2. placebo(noun)

    (Roman Catholic Church) vespers of the office for the dead

GCIDERate this definition:(0.00 / 0 votes)

  1. Placebo(n.)

    (Med.) a dose of a compound having no pharmacological activity given to a subject in a medical experiment as part of a control experiment in a test of the effectiveness of another, active pharmacological agent.

  2. Origin: [L., I shall please, fut. of placere to please.]

WiktionaryRate this definition:(0.00 / 0 votes)

  1. placebo(Noun)

    A dummy medicine containing no active ingredients; an inert treatment.

  2. placebo(Noun)

    Anything of no real benefit which nevertheless makes people feel better.

  3. Origin: From placebo, the first-person singular future active indicative of placeo.

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. Placebo(noun)

    the first antiphon of the vespers for the dead

  2. Placebo(noun)

    a prescription intended to humor or satisfy

  3. Origin: [L., I shall please, fut. of placere to please.]

FreebaseRate this definition:(0.00 / 0 votes)

  1. Placebo

    A placebo is a simulated or otherwise medically ineffectual treatment for a disease or other medical condition intended to deceive the recipient. Sometimes patients given a placebo treatment will have a perceived or actual improvement in a medical condition, a phenomenon commonly called the placebo effect. In medical research, placebos are given as control treatments and depend on the use of measured deception. Common placebos include inert tablets, vehicle infusions, sham surgery, and other procedures based on false information. However, placebos can also have a surprisingly positive effect on a patient who knows that the given treatment is without any active drug, as compared with a control group who knowingly did not get a placebo. In one common placebo procedure, however, a patient is given an inert pill, told that it may improve his/her condition, but not told that it is in fact inert. Such an intervention may cause the patient to believe the treatment will change his/her condition; and this belief may produce a subjective perception of a therapeutic effect, causing the patient to feel their condition has improved — or an actual improvement in their condition. This phenomenon is known as the placebo effect.


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