di·ag·nos·tic
ˌdī-ig-ˈnä-stik 
-əg-
variants
or less commonly diagnostical
ˌdī-ig-ˈnä-sti-kəl
-əg-
1
a
: of, relating to, or used in diagnosis
a diagnostic tool
b
: using the methods of or yielding a diagnosis
diagnostic tests
2
: serving to distinguish or identify
a diagnostic feature
Synonyms
Examples of diagnostic in a Sentence
Adjective
Ultrasound is now widely used as a diagnostic tool.
One important diagnostic feature of this condition is a mild rash.
Noun
the thesis that moral decline is the infallible diagnostic of a decadent society
Recent Examples on the Web
Kathi Valeii, Verywell Health, 4 July 2024
These scales assign a score based on your symptoms and diagnostic tests.6
How To Treat a Thyroid Storm
For a thyroid storm, immediate treatment is crucial to stabilize you and prevent complications.
—Brandi Jones, Msn-Ed, Health, 4 July 2024
Randall Woodfin, Fortune, 3 July 2024
The region had planned to focus on technology that uses artificial intelligence and machine learning on health data for applications such as diagnostics and drug development.
—Lorraine Mirabella, Baltimore Sun, 2 July 2024
See all Example Sentences for diagnostic 
Adjective
Common diagnostic tests include a viral swab, chest X-ray, and blood tests.
—Kathi Valeii, Verywell Health, 4 July 2024
These scales assign a score based on your symptoms and diagnostic tests.6
How To Treat a Thyroid Storm
For a thyroid storm, immediate treatment is crucial to stabilize you and prevent complications.
—Brandi Jones, Msn-Ed, Health, 4 July 2024
Noun
However, in order to assert our country’s continued leadership in biotechnology and strengthen our domestic supply chain of life-saving diagnostics and therapeutics, banning foreign adversaries will not be enough.
—Randall Woodfin, Fortune, 3 July 2024
The region had planned to focus on technology that uses artificial intelligence and machine learning on health data for applications such as diagnostics and drug development.
—Lorraine Mirabella, Baltimore Sun, 2 July 2024
See all Example Sentences for diagnostic
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'diagnostic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near diagnostic
Cite this Entry
“Diagnostic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diagnostic. Accessed 15 Jul. 2024.
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