Polymer that exhibits luminescence (i.e., fluorescence or phosphorescence arising from photo-excitation).
See: photoluminescence
Source:
PAC, 2004, 76, 889. 'Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)' on page 901 (https://doi.org/10.1351/pac200476040889)