Z10E1P3T1O1S1E1C3O1N1D2
25 points
ZEPTOSECOND is validvalid
one part in one short scale sextillion of a second [n ZEPTOSECONDS]
a 10 to the -21 part of a second [n -S]
one part in one short scale sextillion of a second [n ZEPTOSECONDS]
a 10 to the -21 part of a second [n -S]