heavy water


Definition of heavy water

1 : the compound D2O composed of deuterium and oxygen

called also deuterium oxide

2 : water enriched in deuterium

Examples of heavy water in a Sentence

Recent Examples on the Web Flames jumped to the 3-story apartment complex next to the site, which sustained heavy water damage but minimal fire damage, officials said. Vanessa Arredondo, SFChronicle.com, "Investigation into Berkeley blaze delayed as fire smolders for days," 23 Nov. 2020 For basements that experienced severe dampness and heavy water penetration, step up to an industrial-grade product, such as LastiSeal Brick and Concrete Sealer. Joseph Truini, Popular Mechanics, "How to Waterproof Your Basement," 12 Oct. 2020 Sanna Sevanto, a biophysicist at Los Alamos National Laboratory, watched the fungi in action by dousing seedlings’ roots in heavy water, which served as a tracer. Elizabeth Pennisi, Science | AAAS, "Hidden webs of fungi protect some forests from drought—but leave others vulnerable," 26 Aug. 2020 Their original mission set called for hitting targets in Norway, specifically heavy water plants. Matt Fratus, Field & Stream, "The Stories Behind 7 Infamous U.S. Military Knives," 19 Aug. 2020 The release said there was fire damage to the office, smoke damage to the eighth and ninth floors, minor water damage to the seventh floor and heavy water damage to the eighth floor. Jeanne Houck, The Enquirer, "Cincinnati firefighters with a water can and sprinklers douse high-rise blaze," 20 Aug. 2020 Data centers are heavy water users, and Avondale is among the southwest Valley cities with less access to surface water such as from the Colorado River. Joshua Bowling, azcentral, "Avondale lands 1 million-square-foot data center," 3 June 2020 My arms keep pulling, through the heavy water, through the air. Peter Rock, New York Times, "Around Milos, Swimming the Aegean Sea," 14 Nov. 2019 This is especially critical in heavier water with obstacles present. Tim Romano, Outdoor Life, "Rowing Tips That Will Help You Catch More Fish (and Keep You from Capsizing)," 13 Apr. 2020

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

1933, in the meaning defined at sense 1

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Time Traveler for heavy water

Time Traveler

The first known use of heavy water was in 1933

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Statistics for heavy water

Last Updated

1 Dec 2020

Cite this Entry

“Heavy water.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heavy%20water. Accessed 20 Jan. 2021.

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More Definitions for heavy water

heavy water


Medical Definition of heavy water

1 : the compound D2O composed of deuterium and oxygen

called also deuterium oxide

2 : water having a higher-than-usual proportion of deuterium among its hydrogen atoms

More from Merriam-Webster on heavy water

Britannica.com: Encyclopedia article about heavy water

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