Definition of "fluorescent" in English

adjective

1. Of or relating to fluorescence.

2. Exhibiting or produced by fluorescence.

   • The fluorescent plants shimmered in the darkness.

3. Emitting visible light as a result of the excitation of phosphors by ultraviolet photons produced by the passage of an electrical current through an inert gas infused with mercury.

   • The quality of fluorescent lighting technology has improved dramatically in recent years.

4. Vivid, as if fluorescing; neon.

   • Her shirt was fluorescent orange.

noun

1. A fluorescent light.

   • The fluorescents hummed day and night.