Definition of fluorescent
1 : having or relating to fluorescence
2 : bright and glowing as a result of fluorescence fluorescent inks; broadly : very bright in color
Recent Examples of fluorescent from the Web
It’s revealed that Rita and Nick often do other business together, and Rita is game for the evening, but Nick isn’t feeling the romance in the fluorescent storage basement — and, more importantly, his mind is still on Offred.
The event includes recycling of electronics, books, paint, batteries, bikes, garden tools, fluorescent tubes and offers confidential document shredding.
Other harmful colors include fluorescent radium green, arsenic green, and uranium orange.
A fluorescent tube falls from the assembly overhead and shatters next to my desk.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fluorescent'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of fluorescent
FLUORESCENT Defined for English Language Learners
Definition of fluorescent for English Language Learners
: producing light when electricity flows through a tube that is filled with a type of gas
: very bright
FLUORESCENT Defined for Kids
Definition of fluorescent for Students
1 : giving out visible light when exposed to external radiation a fluorescent substance a fluorescent coating
2 : producing visible light by means of a fluorescent coating a fluorescent bulb
3 : extremely bright or glowing fluorescent colors
Seen and Heard
What made you want to look up fluorescent? Please tell us where you read or heard it (including the quote, if possible).