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reactor

noun

re·​ac·​tor rē-ˈak-tər How to pronounce reactor (audio)
1
: one that reacts
2
: a device (such as a coil, winding, or conductor of small resistance) used to introduce reactance into an alternating-current circuit
3
a
: a vat for an industrial chemical reaction
b
: a device for the controlled release of nuclear energy (as for producing heat)

Example Sentences

Recent Examples on the Web The six-reactor Zaporizhzhia Nuclear Power Plant lost its outside source of power a week ago after all its power lines were disconnected because of shelling. Karl Ritter, ajc, 11 Sep. 2022 The six-reactor Zaporizhzhia Nuclear Power Plant lost its outside source of power a week ago after all its power lines were disconnected because of shelling. Karl Ritter, Chicago Tribune, 11 Sep. 2022 The six-reactor Zaporizhzhia nuclear power plant came under the control of Russian forces early in the war but is being operated by Ukrainian staff. Arkansas Online, 10 Sep. 2022 The six-reactor Zaporizhzhia Nuclear Power Plant came under the control of Russian forces early in the war but is being operated by Ukrainian staff. Hanna Arhirova And Yuras Karmanau, Anchorage Daily News, 9 Sep. 2022 More than a dozen states in recent years have adjusted legislation to allow for advanced reactor technology, and many have recently reversed bans on the construction of new nuclear power facilities. Lenora Chu, The Christian Science Monitor, 9 Sep. 2022 The six-reactor Zaporizhzhia Nuclear Power Plant came under the control of Russian forces early in the war but is being operated by Ukrainian staff. Yuras Karmanau, BostonGlobe.com, 9 Sep. 2022 And with the accident in March 2011 at the Fukushima Daiichi Nuclear Power Plant—caused by a tsunami that flooded the facility after a massive underwater earthquake—Japan also experienced the terror of reactor meltdowns. Michael D. Gordin, The New York Review of Books, 7 Sep. 2022 Inspectors documented the presence of Russian troops and military equipment at the site, including vehicles positioned around reactor units. Claire Parker, Washington Post, 6 Sep. 2022 See More

Word History

First Known Use

1890, in the meaning defined at sense 1

Time Traveler
The first known use of reactor was in 1890

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