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Synonyms

diagnostics

American  
[dahy-uhg-nos-tiks] / ˈdaɪ əgˈnɒs tɪks /

noun

(used with a singular verb)
  1. the discipline or practice of diagnosis.


diagnostics British  
/ ˌdaɪəɡˈnɒstɪks /

noun

  1. (functioning as singular) the art or practice of diagnosis, esp of diseases

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of diagnostics

First recorded in 1660–70; see origin at diagnostic, -ics

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A.I.-powered diagnostics distill all of this into one clear picture of your entire body, in 360-degree, piercing-into-the-soul, high-resolution detail.

From Slate ● Oct. 8, 2026

"I have to make it clear - we don't have diagnostics to test for Ebola. It's just about temperature," he said.

From BBC ● Oct. 7, 2026

In April 2027, UChicago Medicine will open the AbbVie Foundation Cancer Pavilion, Chicago's first freestanding cancer pavilion, to bring advanced diagnostics, innovative treatments, translational discoveries, and comprehensive support to patients and the community.

From Science Daily ● Aug. 19, 2026

Siemens Healthineers SHL -0.91%decrease; red down pointing triangle cut its full-year outlook for revenue growth, citing a weak performance in its diagnostics segment, but raised its guidance for adjusted earnings due to U.S. tariff refunds.

From The Wall Street Journal ● Jul. 31, 2026

"But all we have left is the wait. Your work schedules are cleared. All scientific experiments are suspended. Sleep if you can, run diagnostics on your equipment if you can't."

From "The Martian" by Andy Weir

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