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

As security countermeasures, banks should be asking users for strong passwords and enabling two-factor authentication through a physical token (and not via SMS, which can easily be hijacked). Shannon Liao, The Verge, "FBI warns of potential ATM bank heist that could steal millions globally," 14 Aug. 2018 Ethereum developers put a countermeasure in place against the first attack that ensures each node will always make outgoing connections to other peers. Dan Goodin, Ars Technica, "Ethereum fixes serious “eclipse” flaw that could be exploited by any kid," 3 Mar. 2018 The countermeasures would be to take out the missiles that are in development by Russia in violation of the treaty. Kyle Mizokami, Popular Mechanics, "Did a U.S. Official Threaten an Attack on Russia?," 2 Oct. 2018 But diplomats have doubts about whether E.U. countermeasures would be effective, since most big businesses are unlikely to risk their access to the U.S. market in favor of much smaller potential rewards in Iran. Michael Birnbaum, Washington Post, "Europe seeks to sweeten Iran deal, considers standing up to U.S. sanctions," 15 May 2018 The company’s first line of defense against impersonation is the countermeasures that flag accounts that run afoul of Twitter policies on spam — violations that can be easier for the platform to identify and stop at large scale. Nicholas Confessore And Gabriel J.x. Dance, New York Times, "On Social Media, Lax Enforcement Lets Impostor Accounts Thrive," 20 Feb. 2018 More tariffs certainly wouldn’t help, and the U.S. economy would feel the impact of Chinese countermeasures. Thomas J. Duesterberg, WSJ, "The Deal America and China Need," 26 Nov. 2018 The researchers outline a variety of countermeasures. Dan Goodin, Ars Technica, "A $225 GPS spoofer can send sat-nav-guided vehicles into oncoming traffic *," 18 July 2018 On Sunday, Japanese Prime Minister Shinzo Abe said Tokyo might consider countermeasures against Seoul if Japanese companies suffer damages. Alastair Gale, WSJ, "Forced-Labor Dispute Strains Japan-South Korea Relations," 12 Jan. 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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Last Updated

24 May 2019

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The first known use of countermeasure was in 1923

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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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