Definition of actiniums

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  • actiniums is a valid Scrabble US word with a point value of 13
  • actiniums is a valid Scrabble UK word with a point value of 13
  • actiniums is a valid Words with friends word with a point value of 17

Definition of actiniums

  • a radioactive element of the actinide series; found in uranium ores (noun)

    Synonyms

    1. ac
    2. atomic number 89

See definition of actiniums in Merriam Webster