When a doctor tells you why you're feeling ill, he gives you a diagnosis. He asks questions, checks your symptoms, and then identifies what's making you sick.

Diagnosis is a medical term, but you can diagnose lots of things: problems in a relationship, a coming economic crisis, or the reason the car won't start. If you have a sore throat, runny nose and a bad cough, most of the time doctors will diagnose a cold. If the car won't start and the lights and radio are also off, the diagnosis is simple: your battery’s dead. Anytime you determine the cause of a problem, you give a diagnosis.

Definitions of diagnosis

n identifying the nature or cause of some phenomenon

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blood typing
determining a person's blood type by serological methods
medical diagnosis
identification of a disease from its symptoms
uranalysis, urinalysis
(medicine) the chemical analysis of urine (for medical diagnosis)
differential diagnosis
a systematic method of diagnosing a disorder (e.g., headache) that lacks unique symptoms or signs
medical prognosis, prognosis, prospect
a prediction of the course of a disease
Type of:
designation, identification
the act of designating or identifying something

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