diagnostic

1 of 2

adjective

di·​ag·​nos·​tic ˌdī-ig-ˈnä-stik How to pronounce diagnostic (audio)
-əg-
variants or less commonly diagnostical
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
diagnostically adverb

diagnostic

2 of 2

noun

1
: the art or practice of diagnosis
often used in plural
2
: a distinguishing mark
diagnostician noun

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
Adjective
Reducing the global dengue burden will require a multidisciplinary approach including development of vaccines, specific treatments, rapid diagnostic tests and innovative approaches to controlling mosquitoes. Stephen J. Thomas, Forbes, 18 Feb. 2024 The Alzheimer’s Assn.’s plan to create a new class of symptom-free Alzheimer’s patients began taking shape more than a decade ago and was included in proposals to update diagnostic criteria for the disease in 2011 and 2018. Melody Petersen, Los Angeles Times, 14 Feb. 2024 According to Alzheimer’s Disease International, only 20% to 50% of people with the disease receive a formal diagnosis, and that’s just in high-income countries. Not to mention, current diagnostic tests — lumbar punctures and PET scans — are extremely expensive and invasive. Julia Daye, Miami Herald, 14 Feb. 2024 Subsequent diagnostic tests have identified a form of cancer. Escher Walcott, Peoplemag, 11 Feb. 2024 Patients and their caregivers live on hope, which is fueled by this fact: roughly 80 percent of rare diseases have a genetic basis, and advances in genomic sequencing technologies and molecular gene therapies are improving diagnostic tools. David A. Brenner, San Diego Union-Tribune, 8 Feb. 2024 The disease label follows from a clinician’s interview and examination of a person for the diagnostic signs and symptoms, such as memory loss and problems performing day-to-day activities. Jason Karlawish, STAT, 6 Feb. 2024 The 75-year-old King, who recently underwent treatment for an enlarged prostate, was diagnosed with an undisclosed type of cancer during diagnostic tests. TIME, 5 Feb. 2024 High androgen levels are one of the characteristic features of PCOS doctors look for during the diagnostic process. Kristen Rogers, CNN, 31 Jan. 2024
Noun
And The Early Detection Of Diseases AI has been making a mark in diagnostics for a while, but generative AI will significantly enhance the analysis of medical images. Bernard Marr, Forbes, 21 Feb. 2024 These dismissive views have held back ME/CFS research, and scientists have made little progress toward developing diagnostics and therapies and understanding the mechanism behind the condition. Kamal Nahas, Scientific American, 21 Feb. 2024 Modern onboard diagnostics, or OBD-II, became a standardized and mandatory part of every automobile sold in the United States, starting with the 1996 model year. Robin Warner, Ars Technica, 4 Dec. 2023 These findings set the stage for developing new diagnostics for long Covid, and perhaps could inspire new therapeutic targets. Meghana Keshavan, STAT, 19 Jan. 2024 Cervia-Hasler hopes these changes in complement activation could become enough of a long Covid signature in blood samples to develop a diagnostic based on them. Elizabeth Cooney, STAT, 18 Jan. 2024 While Nadella wants to expand access to care through diagnostics, other founders are using software to bridge healthcare gaps. Katie Jennings, Forbes, 28 Nov. 2023 Nothing yet has put her off her course to solve the puzzles of modern diagnostics. Erica Kasper, WIRED, 16 Nov. 2023 Providers will need to prescribe them appropriately, ideally after the results of diagnostics are received. Erin Prater, Fortune Well, 17 Jan. 2024 See More

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.

Word History

First Known Use

Adjective

1625, in the meaning defined at sense 1a

Noun

1625, in the meaning defined at sense 1

Time Traveler
The first known use of diagnostic was in 1625

Dictionary Entries Near diagnostic

Cite this Entry

“Diagnostic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diagnostic. Accessed 26 Feb. 2024.

Kids Definition

diagnostic

adjective
di·​ag·​nos·​tic
ˌdī-ig-ˈnäs-tik
: of, relating to, or used in diagnosis
a diagnostic test for heart disease

Medical Definition

diagnostic

1 of 2 adjective
di·​ag·​nos·​tic -ˈnäs-tik How to pronounce diagnostic (audio)
variants also diagnostical
1
: of, relating to, or used in diagnosis
2
: using the methods of or yielding a diagnosis
a diagnostic service
diagnostic properties
diagnostically adverb

diagnostic

2 of 2 noun
: the art or practice of diagnosis
often used in plural

More from Merriam-Webster on diagnostic

Last Updated: - Updated example sentences
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