fluorescent

adjective

fluo·​res·​cent flu̇-ˈre-sᵊnt 

flȯ-

1

: having or relating to fluorescence

2

: bright and glowing as a result of fluorescence

fluorescent inks

broadly : very bright in color

fluorescent noun

fluorescently adverb

Examples of fluorescent in a Sentence

Recent Examples on the Web

Explore galleries filled with volcanic rocks and fluorescent minerals, browse archival photos, try gold panning, and board a small mine train and ride it into a haulage tunnel, much like workers did in 1914. —Vivian Chung, Travel + Leisure, 7 June 2026

The incubator is draped with a blanket to protect her fragile, developing eyes from the harsh fluorescent lights of the ward. —ABC News, 7 June 2026

The fluorescent lighting blankets every scene with an insectile hum. —Tasha Robinson, Vulture, 29 May 2026

In the black and Carrara marble lobby, the vibe is modern and futuristic, with a cacophonous waterfall tumbling down the walls in a stream of fluorescent colors and a lone scarlet grand piano bringing a pleasing pop of color. —Condé Nast, Condé Nast Traveler, 27 May 2026

Word History

First Known Use

1853, in the meaning defined at sense 1

Phrases Containing fluorescent

• compact fluorescent bulb
• compact fluorescent lamp
• compact fluorescent light
• compact fluorescent lightbulb
• fluorescent lamp

Rhymes for fluorescent

• depressant
• incessant
• putrescent
• quiescent
• senescent
• suppressant
• acquiescent
• adolescent
• arborescent
• coalescent
• convalescent
• deliquescent

Kids Definition

fluorescent

adjective

flu·​o·​res·​cent

ˌflu̇(-ə)r-ˈes-ᵊnt

1

: having or relating to fluorescence

2

: very bright in color

fluorescent markers