Simple Definition of diagnosis
: 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
Full Definition of diagnosis
plural di·ag·no·sesplay \-ˌsēz\
1 a : the art or act of identifying a disease from its signs and symptoms b : the decision reached by diagnosis
2 : a concise technical description of a taxon
3 a : 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
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 of diagnosis
New Latin, from Greek diagnōsis, from diagignōskein to distinguish, from dia- + gignōskein to know — more at know
First Known Use: 1655
DIAGNOSIS Defined for Kids
Definition of diagnosis
plural di·ag·no·ses \-ˌsēz\
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
Thesaurus: All synonyms and antonyms for "diagnosis" Medical Dictionary: Definition of "diagnosis" Spanish Central: Translation of "diagnosis" Nglish: Translation of "diagnosis" for Spanish speakers Britannica English: Translation of "diagnosis" for Arabic speakers Britannica.com: Encyclopedia article about "diagnosis"
Seen and Heard
What made you want to look up diagnosis? Please tell us where you read or heard it (including the quote, if possible).