diagnose
verb
di·ag·nose
ˈdī-ig-ˌnōs 
-ˌnōz,
ˌdī-ig-ˈnōs
-ˈnōz,
-əg-
diagnosed; diagnosing
1
a
: to recognize (something, such as a disease) by signs and symptoms
The other method of diagnosing gallstones is through an ultrasound examination, which has the advantages of being simple, safe and quick.—
G. Timothy Johnson
G. Timothy JohnsonPulmonary embolus was diagnosed in two of the actively treated patients …—Richard D. Sautter et al.
Richard D. Sautter et al.
b
: to recognize a disease or condition in
The physicist and cosmologist was diagnosed with Lou Gehrig's disease when he was a 21-year-old student at Cambridge University.—Maria Cheng
Maria Cheng2
: to analyze the cause or nature of
The mechanic diagnosed the problem with the engine.
: to identify a disease from its signs and symptoms : to make a diagnosis
Examples of diagnose in a Sentence
The test is used to help in diagnosing heart disease.
Thousands of new cases have been diagnosed in the past year.
The doctor was unable to diagnose the skin condition.
a new doctor with little experience diagnosing patients
The mechanic was unable to diagnose the problem.
Recent Examples on the Web
After several visits, examinations and biopsies, he was diagnosed with drug-resistant strep throat that had attacked his lungs.
—Edward Lee, Baltimore Sun, 18 Apr. 2025
According to a nationwide survey conducted in 2022 across 16 localities in the U.S., one in 31 children studied had been diagnosed with autism.
—Jeffrey Kluger, Time, 18 Apr. 2025
Four years ago, she was diagnosed with Stargardt disease, a genetic disorder that causes central vision loss.
—Lori Riley, Hartford Courant, 18 Apr. 2025
At 7 months old, Erlanger was diagnosed with a spinal tumor; the surgery required to remove it left him as a quadriplegic.
—Kate Hogan, People.com, 17 Apr. 2025
See All Example Sentences for diagnose
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Edward Lee, Baltimore Sun, 18 Apr. 2025
According to a nationwide survey conducted in 2022 across 16 localities in the U.S., one in 31 children studied had been diagnosed with autism.
—Jeffrey Kluger, Time, 18 Apr. 2025
Four years ago, she was diagnosed with Stargardt disease, a genetic disorder that causes central vision loss.
—Lori Riley, Hartford Courant, 18 Apr. 2025
At 7 months old, Erlanger was diagnosed with a spinal tumor; the surgery required to remove it left him as a quadriplegic.
—Kate Hogan, People.com, 17 Apr. 2025
See All Example Sentences for diagnose
Cite this Entry
“Diagnose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diagnose. Accessed 21 Apr. 2025.
Copy CitationKids Definition
diagnose
verb
di·ag·nose
ˈdī-ig-ˌnōs
-ˌnōz
-ˌnōz
ˌdī-ig-ˈnōs,
-ˈnōz
diagnosed; diagnosing
: to recognize by signs and symptoms : make a diagnosis
diagnose a disease
diagnose a play in football
Medical Definition
diagnose
verb
di·ag·nose
ˈdī-ig-ˌnōs
-ˌnōz
-ˌnōz
ˌdī-ig-ˈ,
-əg-
diagnosed; diagnosing
1
: to recognize (as a disease) by signs and symptoms
2
: to diagnose a disease or condition in
diagnosed the patient
: to make a diagnosis
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