- any of a number of substances that exhibit luminescence when struck by light of certain wavelengths, as by ultraviolet.
- Literary. a phosphorescent substance.
- Archaic. phosphorescent.
Origin of phosphor
- the morning star, especially Venus.
Origin of Phosphor
- variant of phosphoro- before a vowel: phosphorate.
Examples from the Web for phosphor
Historical Examples of phosphor
Phosphor bronze is used for very strong castings and bearings.Oxy-Acetylene Welding and Cutting
Harold P. Manly
A "phosphor" is in reality an example of a solid solution and is the basis of some kinds of luminous paints.The Nature of Animal Light
E. Newton Harvey
The ram is divided inside into two compartments, each having a phosphor bronze air piston.
Phosphor fires edged the keel; a trailing rope was revealed as a luminous streak.The Unknown Sea
And whether he wished or no, Peter was drawn to follow the figure, which he could make out by the phosphor gleam of it.Myths And Legends Of Our Own Land, Complete
Charles M. Skinner
- a substance, such as the coating on a cathode-ray tube, capable of emitting light when irradiated with particles or electromagnetic radiation
Word Origin for phosphor
"morning star," 1630s, from Latin phosphorus "the morning star" (see phosphorus). Meaning "anything phosphorescent" is from 1705.
- Variant ofphosphoro-
- 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.