Definition of diagnosis in English:

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Pronunciation: /ˌdʌɪəɡˈnəʊsɪs/

noun (plural diagnoses /ˌdʌɪəɡˈnəʊsiːz/)

[mass noun]
1The identification of the nature of an illness or other problem by examination of the symptoms: early diagnosis and treatment are essential [count noun]: a diagnosis of Crohn’s disease was made
More example sentences
  • Many researchers have reported discrepancies between MRI diagnoses and diagnoses made during arthroscopic examination.
  • The technique could eventually provide the basis for computerized medical diagnoses performed in the physician's office, they add.
  • There an assessment nurse diagnosed an acute attack of rheumatoid arthritis and confirmed the diagnoses with blood tests for rheumatoid factor and ESR levels.
identification, recognition, discovery, detection, pinpointing, reading, determination;
confirmation, verification
opinion, prognosis, judgement, verdict, pronouncement, conclusion, interpretation;
solution, result
2The distinctive characterization in precise terms of a genus, species, or phenomenon.
Example sentences
  • What does that mean in terms of a philosophical diagnosis of a damaged ethical life?


Late 17th century: modern Latin, from Greek, from diagignōskein 'distinguish, discern', from dia 'apart' + gignōskein 'recognize, know'.

  • This is a modern Latin formation from Greek, from diagignōskin ‘distinguish, discern’, from dia ‘apart’ and gignōskein ‘recognize, know’.

Words that rhyme with diagnosis

apotheosis, chlorosis, cirrhosis, halitosis, hypnosis, kenosis, meiosis, metempsychosis, misdiagnosis, mononucleosis, myxomatosis, necrosis, neurosis, osmosis, osteoporosis, prognosis, psittacosis, psychosis, sclerosis, symbiosis, thrombosis, toxoplasmosis, trichinosis, tuberculosis

For editors and proofreaders

Line breaks: diag|no¦sis

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