- 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.
Origin of luminescent; from Classical Latin lumen, light + -escent
Origin of luminescentLatin lūmen, lūmin-, light; see lumen + –escent.
(comparative more luminescent, superlative most luminescent)
- emitting light by luminescence