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Word of the Day Wednesday, June 10, 2026

tritium

/ˈtraɪtiəm/ noun · British & US
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What does tritium mean?

noun

A rare and radioactive isotope of hydrogen, with the atomic number 3. It is a gas at room temperature and is used in some applications, such as self-powered lighting devices.

Example

"The scientist studied the properties of tritium in the laboratory."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for tritium

Antonyms of tritium

Rhymes with tritium

Etymologically related