Definition of promethium

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  • promethium is a valid Scrabble US word with a point value of 19
  • promethium is a valid Scrabble UK word with a point value of 19
  • promethium is a valid Words with friends word with a point value of 22

Definition of promethium

  • a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium (noun)

    Synonyms

    1. atomic number 61
    2. pm

See definition of promethium in Merriam Webster