phosphorescent.

Continuing to emit light for a time after the source of absorbed energy is removed.

Use it for

Words that belong together

• phosphorescent paint
• phosphorescent glow

On the page

Phosphorescent paint outlined the stairs after the lights failed.

Usage notes

Primary category: sensory / description. Forms: Normally non-gradable; no ordinary comparative or superlative. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: description. Commonness: moderately common.