P3H4O1S1P3H4O1R1E1S1C3E1N1C3E1
29 points
PHOSPHORESCENCE is validvalid
luminescence that continues after the source of excitation has been removed
luminescence that continues after the source of excitation has been removed
luminescence that continues after the source of excitation has been removed
luminescence that continues after the source of excitation has been removed