fluorescent lamp

noun

: a usually tubular electric lamp having a coating of fluorescent material on its inner surface and containing mercury vapor whose bombardment by electrons from the cathode provides ultraviolet light which causes the material to emit visible light

Examples of fluorescent lamp in a Sentence

Recent Examples on the Web

All glow-in-the-dark toys, stickers, paint, coatings in fluorescent lamps, cathode-ray tube TVs, and some clock dials rely on phosphorescence. — ArsTechnica, 25 Aug. 2026

The law prohibits the sale and distribution of screw-base and bayonet-base compact fluorescent lamps. — Center Square, The Washington Examiner, 1 Jan. 2026

This system captures sunlight during the day and indoor light from LEDs and fluorescent lamps at night. — Georgina Jedikovska, Interesting Engineering, 30 Dec. 2025

This fuzzy star is the Orion Nebula, a vast cloud of hydrogen gas lit up like a fluorescent lamp by young stars gravitationally born inside it. — Mike Lynch, Twin Cities, 2 Feb. 2025

Word History

First Known Use

1896, in the meaning defined above

Rhymes for fluorescent lamp

• amp
• champ
• clamp
• cramp
• damp
• gamp
• ramp
• samp
• scamp
• stamp
• tamp
• tramp

Kids Definition

fluorescent lamp

noun

: an electric lamp in the form of a tube in which light is produced on the inside fluorescent coating by the action of ultraviolet light