Definition of diagnosis
1a : the art or act of identifying a disease from its signs and symptomsb : the decision reached by diagnosis <the doctor's diagnosis>
2 biology : a concise technical description of a taxon
3a : investigation or analysis of the cause or nature of a condition, situation, or problem <diagnosis of engine trouble>b : a statement or conclusion from such an analysis
Examples of diagnosis in a sentence
The unusual combination of symptoms made accurate diagnosis difficult.
She is an expert in the diagnosis and treatment of eye diseases.
The diagnosis was a mild concussion.
His doctor made an initial diagnosis of pneumonia.
The committee published its diagnosis of the problems affecting urban schools.
Origin and Etymology of diagnosis
New Latin, from Greek diagnōsis, from diagignōskein to distinguish, from dia- + gignōskein to know — more at know
First Known Use: 1634
DIAGNOSIS Defined for English Language Learners
Definition of diagnosis for English Language Learners
: the act of identifying a disease, illness, or problem by examining someone or something
: a statement or conclusion that describes the reason for a disease, illness, or problem
DIAGNOSIS Defined for Kids
Definition of diagnosis for Students
1 : the act of recognizing a disease from its signs and symptoms <She specialized in the diagnosis and treatment of eye diseases.>
2 : the conclusion that is reached following examination and testing <The diagnosis was pneumonia.>
Learn More about diagnosis
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