diagnostic

adjective
di·​ag·​nos·​tic | \ ˌdī-ig-ˈnä-stik How to pronounce diagnostic (audio) , -əg-\
variants: or less commonly diagnostical \ ˌdī-​ig-​ˈnä-​sti-​kəl How to pronounce diagnostical (audio) , -​əg-​ \

Definition of diagnostic

 (Entry 1 of 2)

1a : 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

diagnostic

noun

Definition of diagnostic (Entry 2 of 2)

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

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Other Words from diagnostic

Adjective

diagnostically \ ˌdī-​ig-​ˈnä-​sti-​k(ə-​)lē How to pronounce diagnostically (audio) , -​əg-​ \ adverb

Noun

diagnostician \ ˌdī-​ig-​(ˌ)nä-​ˈsti-​shən How to pronounce diagnostician (audio) , -​əg-​ \ 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
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Recent Examples on the Web: Adjective

The benefit also covers diagnostic services like x-rays and some lab testing. courant.com, "Community News For The West Hartford Edition," 26 Aug. 2019 The program offers preventive, diagnostic and restorative services. Juliana Kim, baltimoresun.com, "Maryland’s new dental insurance program for low-income residents pays to remove teeth — but not replace them," 22 Aug. 2019 The goal is to cut costs to Medicaid by providing preventative, diagnostic and restorative services. ___ Copyright 2019 The Associated Press. San Diego Union-Tribune, "New program gives some with Medicaid partial dental coverage," 22 Aug. 2019 There are other resources funded by the foundation for those at 200% of the poverty level who don’t have insurance or are under-insured, including free screenings, diagnostic services and treatment at multiple Palm Beach County hospitals. Catie Wegman, sun-sentinel.com, "Susan G. Komen foundation expands Palm Beach County program to help low-income women navigate breast cancer," 22 July 2019 Built for about $33 million and equipped for another $20 million, the facility is not a hospital or trauma center, but an ambulatory surgical center with 17 medical specialties and imaging and diagnostic services. Ron Hurtibise, Sun-Sentinel.com, "Cleveland Clinic readies new $53 million Coral Springs Family Health Center," 13 July 2018 Take the Netflix app, for example: Mobile Enerlytics, a company that makes battery use diagnostic tools for app makers, recently found that Netflix could drain 20 percent of your phone’s charge overnight just by running in the background. Joe Lindsey, Popular Mechanics, "These 3 Simple Things Will Make Your Phone's Battery Last Longer," 28 May 2019 But more immediately, a partial solution would be the development of quick, cheap diagnostic tools that would allow an instant urine culture so that a doctor could prescribe the right drug for U.T.I.s. Matt Richtel, New York Times, "Urinary Tract Infections Affect Millions. The Cures Are Faltering.," 6 Apr. 2019 But doctors said the potential false positives and other aspects of the study show that people should be cautious about relying on the technology as diagnostic tools. ... Peter Loftus, WSJ, "Apple Watch Has Mixed Results in Big Heart Study," 16 Mar. 2019

Recent Examples on the Web: Noun

The new repair certification program won’t just provide the hardware parts and tools necessary to fix iPhones, but also software and diagnostics tools. Wired, "Apple Will Give Indie Repair Shops the Tools to Fix iPhones," 29 Aug. 2019 The company is attempting to advance artificial intelligence in fields ranging from predictive diagnostics for kidney injuries to wind farm energy output. Sy Mukherjee, Fortune, "CVS Is Demolishing Wall Street Expectations. Here’s What That Means: Brainstorm Health," 7 Aug. 2019 The legislation aims to advance sustained efforts to combat valley fever, including streamlining the U.S. Food and Drug Administration approval process to establish new antifungal diagnostics, treatments and vaccines approved for use in humans. Stephanie Innes, azcentral, "Cases of valley fever in Arizona are up in 2019. Here's what you need to know," 10 July 2019 Each episode investigates eerie future-is-now realms of A.I.: autonomous weapons, medical diagnostics, smart robots, brain waves flying a simulated plane. Sarah Larson, The New Yorker, "Three Podcasts to Listen to in July," 9 July 2019 Initially, doctors believed his Achilles tendon was about to rupture but further diagnostics showed that a small piece of bone had broken off the back of his foot was getting pinches in the joint. Jim Ayello, Indianapolis Star, "Ex-Colts lineman Ryan Diem's injury could shed light on Andrew Luck's prognosis," 13 Aug. 2019 Experts at Wageningen University and the biotech company KeyGene, both in the Netherlands, used genome sequencing and molecular diagnostics to confirm the TR4 diagnosis in infected plant samples from Colombia. Sabine Galvis, Science | AAAS, "Colombia confirms that dreaded fungus has hit its banana plantations," 12 Aug. 2019 The babies of the fertility business offer diagnostics. The Economist, "The fertility business is booming," 8 Aug. 2019 The contract also will provide RTA with turn-by-turn navigation services, real-time location tracking and diagnostics showing when a vehicle is about to break down. Courtney Astolfi, cleveland.com, "RTA trains, buses could have free Wi-Fi by next year," 4 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagnostic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of diagnostic

Adjective

1625, in the meaning defined at sense 1a

Noun

1625, in the meaning defined at sense 1

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Statistics for diagnostic

Last Updated

8 Sep 2019

Look-up Popularity

Time Traveler for diagnostic

The first known use of diagnostic was in 1625

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More Definitions for diagnostic

diagnostic

adjective

English Language Learners Definition of diagnostic

technical : of, relating to, or used in diagnosis : used to help identify a disease, illness, or problem

diagnostic

adjective
di·​ag·​nos·​tic | \ -ˈnäs-tik How to pronounce diagnostic (audio) \
variants: also diagnostical \ -​ti-​kəl How to pronounce diagnostical (audio) \

Medical Definition of diagnostic

 (Entry 1 of 2)

1 : of, relating to, or used in diagnosis
2 : using the methods of or yielding a diagnosis a diagnostic service diagnostic properties

Other Words from diagnostic

diagnostically \ -​ti-​k(ə-​)lē How to pronounce diagnostically (audio) \ adverb

diagnostic

noun

Medical Definition of diagnostic (Entry 2 of 2)

: the art or practice of diagnosis often used in plural

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