F₄E₁M₃T₁O₁S₁E₁C₃O₁N₁D₂

19 points

FEMTOSECOND is validvalid

one short scale quadrillionth of a second [n FEMTOSECONDS]

151,102 of 196,601 in NWL2023·also valid in CSW24

one quadrillionth part of a second [n -S]

87,216 of 280,887 in CSW24·also valid in NWL2023