Definition of tritium

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  • tritium is a valid Scrabble US word with a point value of 9
  • tritium is a valid Scrabble UK word with a point value of 9
  • tritium is a valid Words with friends word with a point value of 11

Definition of tritium

  • a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms (noun)

See definition of tritium in Merriam Webster