P3I1C3O1S1E1C3O1N1D2S1
18 points
PICOSECONDS is validvalid
PICOSECOND, one short scale trillionth of a second [n]
PICOSECOND, a trillionth of a second [n]
PICOSECOND, one short scale trillionth of a second [n]
PICOSECOND, a trillionth of a second [n]