RADIUM /ˈɹeɪ.dɪ.əm/ ► audio Scrabble 9 Words With Friends 11 Scrabble letter values: R1A1D2I1U1M3 = 9 Definition noun an intensely radioactive metallic element that occurs in minute amounts in uranium ores. — synonyms: Ra, atomic_number_88 See all 47 words you can make from RADIUM → 6-letter words Words starting with R Words ending with M ← Unscramble different letters