light water

noun

Definition of light water 

: water sense 1a — compare heavy water

Examples of light water in a Sentence

Recent Examples on the Web

There were indications at Yongbyon of continued development of a light water reactor and the construction and renovation of buildings at the site’s nuclear fuel-rod fabrication plant, the report said. Laurence Norman, WSJ, "North Korea’s Continued Nuclear Work Raises ‘Grave Concerns’ for U.N. Atomic Agency," 21 Aug. 2018 Satellite imagery taken last month suggests North Korea has begun preliminary testing of an experimental light water reactor and possibly brought another reactor online at its Yongbyon Nuclear Research Center. Fox News, "North Korea begins testing experimental reactor at nuclear site despite 'denuclearization' talk," 28 Mar. 2018 Satellite imagery taken last month suggests the North has begun preliminary testing of an experimental light water reactor and possibly brought another reactor online at its Yongbyon Nuclear Research Center. Eric Talmadge, chicagotribune.com, "Ahead of Trump summit, new activity at North Korea nuclear site," 28 Mar. 2018 Satellite imagery taken last month suggests the North has begun preliminary testing of an experimental light water reactor and possibly brought another reactor online at its Yongbyon Nuclear Research Center. Washington Post, "Ahead of Trump summit, new activity at North Korea nuke site," 28 Mar. 2018 Satellite imagery taken last month suggests the North has begun preliminary testing of an experimental light water reactor and possibly brought another reactor online at its Yongbyon Nuclear Research Center. Eric Talmadge, BostonGlobe.com, "Ahead of Trump summit, new activity at North Korea nuke site," 28 Mar. 2018 In the 1994 agreement, South Korea agreed to pay most of the $4 billion cost for light water reactors in North Korea to replace reactors that could produce weapons grade plutonium. Jim Michaels, USA TODAY, "What you need to know about potential U.S.-North Korea talks," 6 Mar. 2018 Following an agreement between the U.S. and North Korea to freeze Pyongyang’s nuclear program in 1994, Mr. Suh spent several years living in North Korea to help oversee the construction of light water reactors. Jonathan Cheng, WSJ, "South Korean Officials to Visit Pyongyang for Talks," 4 Mar. 2018 When moisture is added to dry air, the lighter water molecules displace heavier nitrogen and oxygen molecules and the air becomes less dense. Tom Skilling, chicagotribune.com, "Ask Tom: Is humid air lighter than dry air?," 15 Sep. 2017

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

1933, in the meaning defined above

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Last Updated

19 Nov 2018

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The first known use of light water was in 1933

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