Fluorescence

Pronunciation: /ˌflʊˈrɛsəns/

Fluorescence (noun)

  1. A process where a substance absorbs light and then gives out light of a different colour.
  2. The visible glow used to show where a chemical or material is present in a test.

Examples

  • The paint shows fluorescence under ultraviolet light.
  • Fluorescence appears when the chemical absorbs energy.