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• phosphor
  phosphor

  noun

  any of a number of substances that exhibit luminescence when struck by light of certain wavelengths, as by ultraviolet.
• Phosphor
  Phosphor

  noun

  the morning star, especially Venus.
• phosphor-
  phosphor-

  variant of phosphoro- before a vowel.

phosphor

¹ American  

[fos-fer, -fawr] / ˈfɒs fər, -fɔr /

noun

1. any of a number of substances that exhibit luminescence when struck by light of certain wavelengths, as by ultraviolet.

2. Literary. a phosphorescent substance.

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adjective

1. Archaic. phosphorescent.

Phosphor ² American  

[fos-fer, -fawr] / ˈfɒs fər, -fɔr /

Also Phosphore

noun

1. the morning star, especially Venus.

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phosphor- ³ American  

1. variant of phosphoro- before a vowel.

   phosphorate.

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phosphor British  

/ ˈfɒsfə /

noun

1. a substance, such as the coating on a cathode-ray tube, capable of emitting light when irradiated with particles or electromagnetic radiation

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phosphor Scientific  

/ fŏs′fər /

1. 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.

2. See Note at cathode-ray tube

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Etymology

Origin of phosphor¹

1625–35; < French phosphore < Latin Phōsphorus Phosphor

Origin of Phosphor²

First recorded in 1625–35; from Latin Phōsphorus, from Greek Phōsphóros “the morning star,” literally, “the light-bringing one,” equivalent to phôs “light” + -phoros “bringing”; see -phorous

Example Sentences

See Examples For:

phosphor Phosphor

While currently white light is achieved by phosphor down-conversion, LED color mixing actually has a higher theoretical maximum efficiency, which is needed in order to achieve the 2035 DOE energy efficiency goals.

From Science Daily ● Jan. 23, 2024

The other is to use only blue LEDs but coat them with a type of fluorescent substance called phosphor.

From Scientific American ● Sep. 27, 2023

A byproduct of private and industrial food consumption and processing, sludge and compost can replace some of the nitrogen and phosphor from synthetic fertilizers.

From Salon ● Sep. 29, 2022

For example, he says, CMI developed a red phosphor for fluorescent lighting that does not require rare europium.

From Science Magazine ● Aug. 11, 2021

A shadow fell through the green glow of her forehead phosphor.

From "Ship Breaker" by Paolo Bacigalupi

Furthermore, one of the mobile developers in the Partners programme, Phosphor Games, is creating an action fantasy title named Horn, clearly aimed at the dedicated gaming audience.

From The Guardian ● Aug. 2, 2012

Phosphorus is a constituent of the human brain, and a trenchant German writer has exclaimed, "Ohne Phosphor kein Gedanke!"

From Fragments of science, V. 1-2 by John Tyndall

Pythagoras is said to have been the first to identify Hesperus with Phosphor, as the "Silver planet both of eve and morn," and by Plato the same fact is recognized.

From Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky by Edward Singleton Holden

Phosphor bronze is used for very strong castings and bearings.

From Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon by Harold P. (Harold Phillips) Manly

Now when one comes back, Phosphor is wild with joy—always in a well-bred way.

From Concerning Cats My Own and Some Others by Helen M. Winslow