e·lec·tro·lu·mi·nes·cence 
(ĭ-lĕk′trō-l′mə-nĕsəns)
(ĭ-lĕk′trō-l′mə-nĕsəns)n.
1. Direct conversion of electric energy to light by a solid phosphor subjected to an alternating electric field.
2. Emission of light caused by electric discharge in a gas.
e·lec′tro·lu′mi·nescent adj.