- The definition of luminescent is something or someone that glows or emits light.
A lamp that emits bright light is an example of something that would be described as luminescent.
of, exhibiting, or capable of exhibiting luminescence
Origin of luminescent; from Classical Latin lumen, light + -escent
Capable of, suitable for, or exhibiting luminescence.
Origin of luminescentLatin lūmen, lūmin-, light; see lumen + –escent.
(comparative more luminescent, superlative most luminescent)