coun·​ter·​mea·​sure | \ ˈkau̇n-tər-ˌme-zhər How to pronounce countermeasure (audio) , -ˌmā- \

Definition of countermeasure

: an action or device designed to negate or offset another The most well-known countermeasure by a physician is a malicious-persecution suit against the lawyer who sued him and failed to prove a case.— William J. Curran The Germans had developed a tricky magnetic mine, but the British had developed a countermeasure for this even before the mine was used.— Bernard Brodie and Fawn M. Brodie especially : electronic countermeasure

Examples of countermeasure in a Sentence

Recent Examples on the Web Macron has sought to ease tensions with 17 billion euros ($18.82 billion) of countermeasures. Washington Post, "World digest: Sept. 14, 2019," 14 Sep. 2019 That the state of Arizona require companies to submit an application for testing self-driving cars that at a minimum details plans to manage the risks of crashes and driver inattentiveness, and to lay out countermeasures to crashes. Ryan Randazzo, azcentral, "Driver mostly to blame for fatal self-driving Uber crash, federal safety board finds," 19 Nov. 2019 China’s foreign ministry has threatened to take unspecified countermeasures if the measures are passed in the Senate. San Diego Union-Tribune, "China legislature blasts US Congress over Hong Kong," 18 Oct. 2019 The root cause of [Iran’s] countermeasures are obvious to us. Erin Cunningham,, "US accuses Iran of ‘nuclear extortion’ at emergency meeting of atomic energy watchdog," 10 July 2019 The aggressive countermeasures were part of a broader, ongoing effort by Twitch to carve out a safer space for the 500,000 streamers who go live on the platform each day. Jeff Green,, "How Amazon’s Twitch protects its LGBT community from online harassment," 8 July 2019 Basic-economy fares started as tests in select markets, originally pitched by airlines as a countermeasure to discount airlines, then spread world-wide. Scott Mccartney, WSJ, "Are Your Frequent-Flier Miles About to Lose Value?," 19 Dec. 2018 The newfound glasnost on Novichoks, also known as fourth-generation nerve agents, should spur research on their mechanism of action and on countermeasures and treatments. Richard Stone, Science | AAAS, "Poison used in recent attack on Russian spy may soon be banned," 23 Oct. 2019 The move green-lights the Trump administration to slap countermeasures on the 28-member bloc and follows a WTO ruling in May 2018 on the Airbus subsidies. Washington Post, "The Latest: US plans tariffs on EU cheese, wine, aircraft," 3 Oct. 2019

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

1923, in the meaning defined above

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Time Traveler for countermeasure

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The first known use of countermeasure was in 1923

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Last Updated

18 Jan 2020

Cite this Entry

“Countermeasure.” The Dictionary, Merriam-Webster Inc., Accessed 19 January 2020.

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More Definitions for countermeasure


How to pronounce countermeasure (audio)

English Language Learners Definition of countermeasure

: an action or device that is intended to stop or prevent something bad or dangerous

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Comments on countermeasure

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


to insert between existing elements

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