Meaning & use
phosphor
Last updated
A substance that glows or emits light when struck by radiation, such as the coating used inside older television and display screens.
See it in a sentence
The phosphor coating inside the tube lit up green wherever the electron beam struck it.
Engineers experimented with different phosphors to improve the brightness of the display.
A note on using this word
Not the same word as "phosphorus," the chemical element — "phosphor" specifically refers to a light-emitting substance or coating.
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