fluorescent

fluo|res|cent /flʊər'esənt/
1 [ADJ] usu ADJ n
A fluorescent surface, substance, or colour has a very bright appearance when light is directed onto it, as if it is actually shining itself.
...a piece of fluorescent tape.
fluorescence [N-UNCOUNT]
...the green fluorescence it gives off under ultraviolet radiation.
2 [ADJ] usu ADJ n
A fluorescent light shines with a very hard, bright light and is usually in the form of a long strip.
...fluorescent light tubes.