TRITIUM Scrabble 9 Words With Friends 11 Scrabble letter values: T1R1I1T1I1U1M3 = 9 Definition noun a radioactive isotope of hydrogen. Examples “atoms of tritium have three times the mass of ordinary hydrogen atoms” See all 20 words you can make from TRITIUM → 7-letter words Words starting with T Words ending with M ← Unscramble different letters