Definition, Meaning & Synonyms

fluoresce

verb

/flɔːˈrɛs/

Definition

To emit light, especially visible light, when exposed to radiation such as ultraviolet light.

Examples

The minerals in the rock fluoresce under ultraviolet light.
Many highlighters fluoresce, making them easier to see in low light conditions.
Some species of jellyfish can fluoresce, creating a beautiful glow in the water.

Meaning

Fluoresce refers to the phenomenon where a substance absorbs light or other electromagnetic radiation and then re-emits it almost instantaneously. This process often involves a substance gaining energy from the radiation, which is then released as light of a longer wavelength.