• A forecast of the future course of a disease or disorder, based on medical knowledge.
  • The chances of recovery from a disease.
  • A forecast of the future course, or outcome, of a situation; a prediction.


  • Borrowed from Latin prognōsis, from Ancient Greek πρόγνωσις ("foreknowledge, perceiving beforehand, prediction"), from prefix προ- + γνῶσις, from γιγνώσκω. First attested in the mid 17th century. Equivalent to Germanic cognate foreknowledge, Latinate cognate precognition, and Sanskritic cognate prajna.

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