luminescence

/ˌluməˈnɛsəns/
noun
  1. The emission of light that is not caused by heat, such as from a chemical reaction, electricity, or living organisms.
    • Scientists studied the luminescence of certain deep-sea fish.
    • The firefly's luminescence lit up the summer night.
    • The glow stick's luminescence comes from a chemical reaction inside.
  2. A soft, glowing light that is not bright or harsh.
    • Her skin had a healthy luminescence after the vacation.
    • The luminescence of the moon reflected on the lake.
    • The painting captured the soft luminescence of dawn.
Antonyms
What does "luminescence" mean? | whatsthatwordmean | whatsthatwordmean