• IPA: /daɪəɡˈnəʊsɪs/


  1. (medicine) The identification of the nature and cause of an illness.
  2. The identification of the nature and cause of something (of any nature).
    • The quick eye for effects, the clear diagnosis of men's minds, and the love of epigram.
    • My diagnosis of his character proved correct.
  3. (taxonomy) A written description of a species or other taxon serving to distinguish that species from all others. Especially, a description written in Latin and published.
    • 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page viii:
      The repeated exposure, over decades, to most taxa here treated has resulted in repeated modifications of both diagnoses and discussions, as initial ideas of the various taxa underwent—often repeated—conceptual modification.
Related terms Translations Translations
  • German: Diagnose
  • Russian: диа́гноз
  1. (nonstandard) Synonym of diagnose#English|diagnose
    • 2013, Donald A. Norman, The Design of Everyday Things
      quote en

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