any of a number of substances that exhibit luminescence when struck by light of certain wavelengths, as by ultraviolet.
Literary. a phosphorescent substance.
Other definitions for Phosphor (2 of 3)
the morning star, especially Venus.
- Also Phos·phore [fos-fawr, -fohr], /ˈfɒs fɔr, -foʊr/, Phos·pho·rus [fos-fer-uhs] /ˈfɒs fər əs/ .
Other definitions for phosphor- (3 of 3)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use phosphor in a sentence
He and fellow University of Houston chemist Shruti Hariyani have been studying the properties of phosphors.
The Houston team tested the new phosphor to make sure it wouldn’t break down easily.
Not only did the phosphor continue to glow at the same intensity, but its color remained steady.
When the chip is coated with powdered phosphors, the color of the light shining through the lens changes.
Europium often is added to lighting phosphors because it helps boost the blue part of an LED’s glow.
How, at so late an hour, this had been effected, I knew no more than where my horse phosphor came from.The Sorrows of Satan | Marie Corelli
Phosphoresc′ent, shining in the dark like phosphorus; phosphor′ic, Phos′phorous, pertaining to or obtained from phosphorus.
A wheezing chuckle answered him, and a phosphor bulb glowed weakly, shedding some light on a filthy hall.Police Your Planet | Lester del Rey
At the front of each building, a dim phosphor bulb glowed; when darkness fell, they would have nothing else to see by.Police Your Planet | Lester del Rey
Pelton wheel made of a solid steel disk with phosphor bronze buckets riveted to the rim.
British Dictionary definitions for phosphor
a substance, such as the coating on a cathode-ray tube, capable of emitting light when irradiated with particles or electromagnetic radiation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for phosphor
Any of various substances that can emit light after absorbing some form of radiation. Television screens and fluorescent lamp tubes are coated on the inside with phosphors. See Note at cathode-ray tube.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.