fluorescence.

Light emitted by a substance after excitation, usually ending very soon after the excitation stops.

Use it for

Words that belong together

• green fluorescence
• fluorescence microscopy

On the page

Fluorescence revealed the cells beneath the microscope.

The marker’s fluorescence vanished when excitation ceased.

Usage notes

Primary category: sci-fi. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.