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
Defense argued that Gulf War veteran should be spared
Hutchinson has maintained that the murders were committed during a struggle with two home invaders, though his legal team has pointed towards the former Army Ranger's Gulf War Syndrome diagnosis as a reason to stay the execution.
—
James Powel, USA Today, 2 May 2025
The stay was their first official overnight work trip since Princess Kate announced her cancer diagnosis in March 2024.
—Janine Henni, People.com, 1 May 2025
Despite the rising rate of PPD potentially reflecting improved screening and diagnosis practices, the study stresses the importance of developing and implementing interventions to prevent the condition.
—Hannah Nwoko, Parents, 1 May 2025
Two others with new cancer diagnoses were also denied treatment, according to Dr. David Prezant, chief medical officer of the New York City Fire Department and director of its World Trade Center Health Program.
—Liz Neporent, ABC News, 30 Apr. 2025
See All Example Sentences for diagnosis
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James Powel, USA Today, 2 May 2025
The stay was their first official overnight work trip since Princess Kate announced her cancer diagnosis in March 2024.
—Janine Henni, People.com, 1 May 2025
Despite the rising rate of PPD potentially reflecting improved screening and diagnosis practices, the study stresses the importance of developing and implementing interventions to prevent the condition.
—Hannah Nwoko, Parents, 1 May 2025
Two others with new cancer diagnoses were also denied treatment, according to Dr. David Prezant, chief medical officer of the New York City Fire Department and director of its World Trade Center Health Program.
—Liz Neporent, ABC News, 30 Apr. 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 7 May. 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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