de·tec·tion | \ di-ˈtek-shən \

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

When they’re born, panda cubs are 1/900 the size of the mother, making detection in utero quite the challenge. Katherine J. Wu, Smithsonian, "A Primer on the Zoo’s Possibly Pregnant Giant Panda," 28 June 2018 The goal of reducing heat signature like this is to reduce detection by an enemy force. Allison Barrie, Fox News, "New futuristic Israeli 'dune-buggy' is bristling with weapons, ready for combat," 22 June 2018 Federighi introduced the second-generation version, which has improved technology such as better facial tracking and 3D-object detection. Wendy Lee, San Francisco Chronicle, "Apple shows animated Lego sets to promote augmented reality updates," 4 June 2018 Taker is a bomb-detection dog who saved many soldiers' lives during tours of duty in both Iraq and Afghanistan. Grant Suneson And John Harrington, USA TODAY, "The 25 most heroic dogs in America," 5 July 2018 The wrong-way detection system on I-17 detected its first wrong-way driver in travel lanes early Thursday morning. Angela Forburger, azcentral, "I-17 warning system detects first wrong-way driver on travel lanes," 5 July 2018 Shell casings were found near 89 Pliny St., but the city’s ShotSpotter gunfire detection system did not register the sound, police said. Jenna Carlesso, Courant Community, "Hartford Police: 17-Year-Old Shot In Leg," 1 July 2018 Keller Canyon has its own detection system, too, King said. Kimberly Veklerov,, "Pittsburg residents fear city dump tainted with radioactive waste from SF shipyard," 22 June 2018 To study the antechinus, Baker's team uses detection dogs trained to sniff them out. Kelly Murray, CNN, "These Aussie marsupials are having so much sex they are literally killing themselves," 15 May 2018

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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Phrases Related to detection

escape detection

evade detection

Statistics for detection

Last Updated

13 Sep 2018

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Time Traveler for detection

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

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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 \

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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Comments on detection

What made you want to look up detection? Please tell us where you read or heard it (including the quote, if possible).


the setting in which something occurs

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