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Synonyms

diagnose

American  
[dahy-uhg-nohs, -nohz, dahy-uhg-nohs, -nohz] / ˈdaɪ əgˌnoʊs, -ˌnoʊz, ˌdaɪ əgˈnoʊs, -ˈnoʊz /

verb (used with object)

diagnosed, diagnosing
  1. to determine the identity of (a disease, illness, etc.) by a medical examination.

    The doctor diagnosed the illness as influenza.

  2. to ascertain the cause or nature of (a disorder, malfunction, problem, etc.) from the symptoms.

    The mechanic diagnosed the trouble that caused the engine knock.

  3. to classify or determine on the basis of scientific examination.


verb (used without object)

diagnosed, diagnosing
  1. to make a diagnosis.

diagnose British  
/ ˈdaɪəɡˌnəʊz /

verb

  1. to determine or distinguish by diagnosis

  2. (tr) to examine (a person or thing), as for a disease

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • diagnosable adjective
  • underdiagnose verb (used with object)
  • undiagnosable adjective
  • undiagnosed adjective
  • well-diagnosed adjective

Etymology

Origin of diagnose

First recorded in 1860–65; back formation from diagnosis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A new study has found tiny plastic particles in nine out of 10 men diagnosed with prostate cancer.

From Science Daily

He then compared those findings with detailed images of the same types of antibodies collected from people diagnosed with the disorder.

From Science Daily

Kutler has some big professional challenges, but none as daunting as the one that emerged in October when she was diagnosed with breast cancer.

From Los Angeles Times

I am not diagnosing him or implying malicious intent, but I do believe you should be guarded.

From MarketWatch

Wellington Water, which manages the Moa Point plant, has brought in experts from Australia to diagnose what went wrong but it remains a mystery.

From Barron's