tritium
noun
tri·ti·um
ˈtri-tē-əm 
ˈtri-shē-
: a radioactive isotope of hydrogen that has one proton and two neutrons in its nucleus and that has three times the mass of ordinary hydrogen
—symbol T
Examples of tritium in a Sentence
Recent Examples on the Web
The tools making a return in the Flounder’s second iteration include an ‘everlasting pen,’ 1/4-in and 1/6-in bit drivers, nail puller, pry bar, bottle opener, saw, keychain holes and tritium slots.
—
New Atlas, 6 Aug. 2024
Under the right conditions, deuterium and tritium each will lose an electron and fuse to form one helium atom with two protons and two of the three neutrons.
—Siddhant Pusdekar, Journal Sentinel, 23 July 2024
Deuterium has one neutron in the nucleus and tritium has two.
—Siddhant Pusdekar, Journal Sentinel, 23 July 2024
The matte black base hosts creamy tritium lume markers that have remained mostly intact around the dial.
—Allen Farmelo, Robb Report, 19 July 2024
See all Example Sentences for tritium 
New Atlas, 6 Aug. 2024
Under the right conditions, deuterium and tritium each will lose an electron and fuse to form one helium atom with two protons and two of the three neutrons.
—Siddhant Pusdekar, Journal Sentinel, 23 July 2024
Deuterium has one neutron in the nucleus and tritium has two.
—Siddhant Pusdekar, Journal Sentinel, 23 July 2024
The matte black base hosts creamy tritium lume markers that have remained mostly intact around the dial.
—Allen Farmelo, Robb Report, 19 July 2024
See all Example Sentences for tritium
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tritium.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Tritium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tritium. Accessed 19 Aug. 2024.
Copy CitationKids Definition
tritium
noun
tri·ti·um
ˈtrit-ē-əm
ˈtrish-ē-
ˈtrish-ē-
: a rare radioactive form of hydrogen having atoms with three times the mass of ordinary light hydrogen atoms
Medical Definition
tritium
noun
tri·ti·um
ˈtrit-ē-əm
ˈtrish-ē-
ˈtrish-ē-
: a radioactive isotope of hydrogen that has three times the mass of ordinary hydrogen
—symbol T
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