Definition of thorium

Scrabble & Words with friends points


  • thorium is a valid Scrabble US word with a point value of 12
  • thorium is a valid Scrabble UK word with a point value of 12
  • thorium is a valid Words with friends word with a point value of 13

Definition of thorium


  • a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands (noun)

    Synonyms

    1. atomic number 90
    2. th

See definition of thorium in Merriam Webster