detector

noun
de·​tec·​tor | \ di-ˈtek-tər How to pronounce detector (audio) \

Definition of detector

: one that detects: such as
a : a device for detecting the presence of electromagnetic waves or of radioactivity
b : a rectifier of high-frequency current used especially for extracting the intelligence from a radio signal

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Synonyms for detector

Synonyms

sensor

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Examples of detector in a Sentence

using metal detectors to improve safety at airports a motion detector to thwart burglaries

Recent Examples on the Web

The Council of Large Public Housing Authorities and the Public Housing Authorities Directors Association signed on recently, after the funding for installing the detectors was increased. NBC News, "House committee passes $300 million bill requiring carbon monoxide detectors in public housing," 27 June 2019 After the shooting spree, Tarrant County officials installed metal detectors and X-ray machines at all entrances to county buildings. David Tarrant Kevin Krause, Dallas News, "Courthouse security stepped up after deadly shootings in the '90s," 17 June 2019 New Trier High School in Chicago's northern suburbs is considering installing vaping detectors in bathrooms. Author: Kate Zernike, Anchorage Daily News, "Devices to quit smoking become the devices teenagers can’t quit," 2 Apr. 2018 New Trier High School in Chicago’s northern suburbs is considering installing vaping detectors in bathrooms. Kate Zernike, New York Times, "‘I Can’t Stop’: Schools Struggle With Vaping Explosion," 2 Apr. 2018 However, the board will study other security measures, including installing metal detectors and increasing police presence. Bob Sandrick, cleveland.com, "Brecksville-Broadview Heights school board opposes arming teachers, will study other security options," 26 Mar. 2018 Public schools would also be required to complete mandatory active shooter training during the first week of each semester and funding would be used for installing metal detectors, bulletproof glass, steel doors and upgraded locks. CBS News, "Florida Gov. Rick Scott announces plan to improve school safety," 23 Feb. 2018 Some, including President Trump, have suggested stronger security measures across the country's schools — including arming teachers and installing metal detectors at entrances — as a possible solution to the glut of shootings since 1999. Eder Campuzano, OregonLive.com, "Cinemark is banning large bags from its theaters," 21 Feb. 2018 Central Florida courthouses responded by installing metal detectors and X-ray machines within months after the shooting. Krista Torralva, OrlandoSentinel.com, "Orange County Courthouse security influenced by 1984 shooting," 10 Jan. 2018

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

1541, in the meaning defined above

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More Definitions for detector

detector

noun

English Language Learners Definition of detector

: a device that can tell if a substance or object is present : a device that detects the presence of something

detector

noun
de·​tec·​tor | \ di-ˈtek-tər How to pronounce detector (audio) \

Medical Definition of detector

: one that detects especially : a device for detecting the presence of electromagnetic waves or of radioactivity

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