diagnosis
noun
di·ag·no·sis
ˌdī-ig-ˈnō-səs 
-əg-
plural diagnoses
ˌdī-ig-ˈnō-ˌsēz
-əg-
1
a
: the art or act of identifying a disease from its signs and symptoms
b
: the decision reached by diagnosis
the doctor's diagnosis
2
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
3
biology
: a concise technical description of a taxon
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.
Recent Examples on the Web
The lawsuit said Blue KC’s audits target hospital inpatient claims that include diagnoses with certain comorbidities and complications.
—
Nathan Pilling
july 12, Kansas City Star, 12 July 2025
Some analysts touted the possibility that AI tools could do away with generalist roles and yield a boom in specialty positions, such as transitioning a primary care doctor to a role narrowly focused on diagnosis.
—Max Zahn, ABC News, 12 July 2025
This kind of rapid diagnosis is one of the big promises of artificial intelligence for use in health care.
—Turgay Ayer, The Conversation, 11 July 2025
Joel was unable to attend the screening due to his recent brain disorder diagnosis.
—Larisha Paul, Rolling Stone, 11 July 2025
See All Example Sentences for diagnosis
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Nathan Pilling
july 12, Kansas City Star, 12 July 2025
Some analysts touted the possibility that AI tools could do away with generalist roles and yield a boom in specialty positions, such as transitioning a primary care doctor to a role narrowly focused on diagnosis.
—Max Zahn, ABC News, 12 July 2025
This kind of rapid diagnosis is one of the big promises of artificial intelligence for use in health care.
—Turgay Ayer, The Conversation, 11 July 2025
Joel was unable to attend the screening due to his recent brain disorder diagnosis.
—Larisha Paul, Rolling Stone, 11 July 2025
See All Example Sentences for diagnosis
Cite this Entry
“Diagnosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diagnosis. Accessed 16 Jul. 2025.
Copy CitationKids Definition
diagnosis
noun
di·ag·no·sis
ˌdī-ig-ˈnō-səs
plural diagnoses
-ˈnō-ˌsēz
1
a
: the art or act of identifying a disease from its signs and symptoms
b
: the decision reached by diagnosis
2
a
: a careful study of something especially to determine its nature or importance
b
: the conclusion reached after a study or examination
Medical Definition
diagnosis
noun
di·ag·no·sis
ˌdī-ig-ˈnō-səs, -əg-
plural diagnoses
-ˌsēz
1
a
: the art or act of identifying a disease from its signs and symptoms
b
: the decision reached by diagnosis
a diagnosis of pneumonia
2
: a concise technical description of a taxon
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