Scrabble & Words with friends points
- femtoseconds is a valid Scrabble US word with a point value of 20
- femtoseconds is a valid Scrabble UK word with a point value of 20
- femtoseconds is a valid Words with friends word with a point value of 23
Definition of femtoseconds
- one quadrillionth (10^-15) of a second; one thousandth of a picosecond (noun)
See definition of femtoseconds in Merriam Webster