Definition of quintillionth

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  • quintillionth is a valid Scrabble US word with a point value of 25
  • quintillionth is a valid Scrabble UK word with a point value of 25
  • quintillionth is a valid Words with friends word with a point value of 29

Definition of quintillionth

  • one part in a quintillion equal parts (noun)

    Synonyms

    1. one-quintillionth
  • the ordinal number of one quintillion in counting order (adjective)

See definition of quintillionth in Merriam Webster