de·​tec·​tion | \ di-ˈtek-shən How to pronounce detection (audio) \

Definition of detection

1 : the act of detecting : the state or fact of being detected
2 : the process of demodulating

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Examples of detection in a Sentence

I don't know how the errors managed to avoid detection for so long. my detection of the scent of baked apple pie led me to the kitchen
Recent Examples on the Web Amanpour’s call to action encouraging early detection is especially vital considering that only about 20% of ovarian cancers are found at an early stage. Lauren Valenti, Vogue, 15 June 2021 As the registry’s work bears out, and mental health care providers can attest, early detection of symptoms and minimizing delay in treatment can improve health outcomes across the board. Adnan Asar, Forbes, 10 June 2021 Grail’s technology can also detect the 12 most deadly cancers with 60% accuracy and has the potential to reduce false cancer diagnoses and invasive screenings while increasing early detection of aggressive cancers. The Editorial Board, WSJ, 2 June 2021 Michael Eisenson, a Dana-Farber trustee who is leading the campaign, said the money will help recruit and retain doctors and scientists and advance work in early detection of cancer and immunotherapy and other treatments., 17 May 2021 Many women postponed important annual check-ups, crucial to maintaining health and early detection of many diseases. Lois Szymanski,, 10 May 2021 His daughter wondered whether early detection could have helped save him. Los Angeles Times, 3 May 2021 Yes, exercise, diet, and things of that nature are very important, but what most people don’t talk about, which is even more important, is early detection, identifying your issue as soon as possible, and then doing something about it. Jennifer Ogunsola, Essence, 29 Apr. 2021 This is the first time the method has been used in Wisconsin or Minnesota, and the effort in the Mississippi River near La Crosse is the first time it's been used as an early detection and rapid response technique. Laura Schulte, Milwaukee Journal Sentinel, 9 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'detection.' 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 detection

15th century, in the meaning defined at sense 1

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Learn More About detection

Time Traveler for detection

Time Traveler

The first known use of detection was in the 15th century

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Statistics for detection

Last Updated

19 Jun 2021

Cite this Entry

“Detection.” Dictionary, Merriam-Webster, Accessed 22 Jun. 2021.

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More Definitions for detection



English Language Learners Definition of detection

: the act or process of discovering, finding, or noticing something


de·​tec·​tion | \ di-ˈtek-shən How to pronounce detection (audio) \

Kids Definition of detection

: the act of learning that something or someone is or was there : discovery The clever thief escaped detection.


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