Definition of diagnose
- The disease is most commonly diagnosed in middle-aged men.
- diagnosed the patient
- The mechanic diagnosed the problem with the engine.
The test is used to help in diagnosing heart disease.
Thousands of new cases have been diagnosed in the past year.
The doctor was unable to diagnose the skin condition.
a new doctor with little experience diagnosing patients
The mechanic was unable to diagnose the problem.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagnose.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: circa 1859See Words from the same year
: to recognize (a disease, illness, etc.) by examining someone
: to recognize a disease, illness, etc., in (someone)
: to find the cause of (a problem)
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