heavy water
noun
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
But its cover was blown in December 2002, when satellite photos emerged showing an enrichment site in the city of Natanz and a heavy water plant about 200 miles away in Arak.
—
Dan De Luce, NBC news, 28 June 2025
Israel took out top generals and nuclear scientists and destroyed nuclear facilities in Natanz, Isfahan and the Arak heavy water reactor, Netanyahu said.
—Melanie Lidman, Chicago Tribune, 24 June 2025
Israel meanwhile struck a heavy water reactor that is part of Iran’s nuclear program.
—Lionel Lim, Fortune, 19 June 2025
Israel's military said its fighter jets targeted the Arak heavy water reactor, some 155 miles southwest of Tehran, to prevent it from being used to produce plutonium.
—Arkansas Online, 20 June 2025
See All Example Sentences for heavy water
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Dan De Luce, NBC news, 28 June 2025
Israel took out top generals and nuclear scientists and destroyed nuclear facilities in Natanz, Isfahan and the Arak heavy water reactor, Netanyahu said.
—Melanie Lidman, Chicago Tribune, 24 June 2025
Israel meanwhile struck a heavy water reactor that is part of Iran’s nuclear program.
—Lionel Lim, Fortune, 19 June 2025
Israel's military said its fighter jets targeted the Arak heavy water reactor, some 155 miles southwest of Tehran, to prevent it from being used to produce plutonium.
—Arkansas Online, 20 June 2025
See All Example Sentences for heavy water
Cite this Entry
“Heavy water.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heavy%20water. Accessed 12 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share