Definition, Meaning & Synonyms

luminescence

Noun

/ˌluː.məˈnɛs.əns/

Definition

The emission of light by a substance that has not been heated, as in fluorescence and phosphorescence.

Examples

The luminescence of the glow-in-the-dark stars on the ceiling created a magical atmosphere in the room.
Some species of jellyfish exhibit luminescence, which helps them evade predators.
Luminescence is commonly used in watches to improve visibility in low-light conditions.

Meaning

Luminescence describes the process of producing light without the involvement of heat. It occurs in various materials and can result from chemical reactions, biological processes, or exposure to radiation.