Examples of heavy hydrogen in a Sentence
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Inside the nuclear reactor, electricity will flow through the heavy hydrogen isotopes.
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Abhishek Bhardwaj, Interesting Engineering, 22 Aug. 2025
Far more important than previously assumed In the new study, the researchers recreated early helium hydride reactions by storing the ions at minus 449 degrees Fahrenheit (minus 267 degrees Celsius) for up to 60 seconds to cool them down before forcing them to collide with heavy hydrogen.
—Perri Thaler, Space.com, 16 Aug. 2025
Most fusion projects are based on fusing two heavy hydrogen isotopes deuterium and tritium, while others are looking at what is known as aneutronic fusion using proton-boron or helium-3 fusion.
—David Szondy, New Atlas, 8 July 2024
Any leaks could lead to a release of radioactive tritium, a heavy hydrogen isotope that is one of fusion’s fuels.
—Bydaniel Clery, science.org, 3 July 2024
The subsequent radiation, pressure, and energy then fuses two types of heavy hydrogen, tritium and deuterium, to form helium.
—Time, 24 July 2023
The real purpose of ITER—to run high-power fusion experiments using a mixture of the heavy hydrogen isotopes deuterium and tritium—won’t happen until more than a decade after the machine hits its first plasma milestone.
—Charles Seife, Scientific American, 15 June 2023
In 1997, three scientists from the University of California, San Diego, used the ratio of heavy hydrogen nuclei—hydrogen with an extra neutron—to normal hydrogen to estimate that baryons should make up about 5 percent of the mass-energy budget of the universe.
—Popular Science, 31 May 2020
But as the temperature goes up, more heavy hydrogen evaporates, eventually precipitating out over Greenland.
—Kathy A Svitil, Discover Magazine, 11 Nov. 2019
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Abhishek Bhardwaj, Interesting Engineering, 22 Aug. 2025
Far more important than previously assumed In the new study, the researchers recreated early helium hydride reactions by storing the ions at minus 449 degrees Fahrenheit (minus 267 degrees Celsius) for up to 60 seconds to cool them down before forcing them to collide with heavy hydrogen.
—Perri Thaler, Space.com, 16 Aug. 2025
Most fusion projects are based on fusing two heavy hydrogen isotopes deuterium and tritium, while others are looking at what is known as aneutronic fusion using proton-boron or helium-3 fusion.
—David Szondy, New Atlas, 8 July 2024
Any leaks could lead to a release of radioactive tritium, a heavy hydrogen isotope that is one of fusion’s fuels.
—Bydaniel Clery, science.org, 3 July 2024
The subsequent radiation, pressure, and energy then fuses two types of heavy hydrogen, tritium and deuterium, to form helium.
—Time, 24 July 2023
The real purpose of ITER—to run high-power fusion experiments using a mixture of the heavy hydrogen isotopes deuterium and tritium—won’t happen until more than a decade after the machine hits its first plasma milestone.
—Charles Seife, Scientific American, 15 June 2023
In 1997, three scientists from the University of California, San Diego, used the ratio of heavy hydrogen nuclei—hydrogen with an extra neutron—to normal hydrogen to estimate that baryons should make up about 5 percent of the mass-energy budget of the universe.
—Popular Science, 31 May 2020
But as the temperature goes up, more heavy hydrogen evaporates, eventually precipitating out over Greenland.
—Kathy A Svitil, Discover Magazine, 11 Nov. 2019
Cite this Entry
“Heavy hydrogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heavy%20hydrogen. Accessed 17 Sep. 2025.
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