Definition of phosphor in English:

phosphor

noun

mass noun
  • 1A synthetic fluorescent or phosphorescent substance, especially one used to coat the screen of a cathode ray tube.

    ‘a layer of phosphor is sandwiched between two electrodes’
    count noun ‘yttrium and europium are in demand for use in phosphors for colour TVs’
    as modifier ‘a phosphor screen’
    • ‘This invention relates to coated particles used as phosphor particles for a phosphor screen of a display and a coating method for such particles.’
    • ‘To obtain good colour pictures on a TV screen, you need phosphors that produce rich, pure primaries.’
    • ‘Cerium is also used in the manufacture of lasers and phosphors used in cathode ray tubes.’
    • ‘Compounds of the element are also used to make phosphors that coat the screen of television tubes and CRTs (cathode ray tubes).’
    • ‘Fluorescent materials can be synthetic, such as phosphors, or occur in nature, for example, fluorescent minerals.’
    1. 1.1
      old-fashioned term for phosphorus
      • ‘The term "phosphor" obviously is employed as well for the chemical element discovered by a Hamburg alchemist, Hennig Brand, in 1669.’

Origin

Early 17th century: from Latin phosphorus (see phosphorus).

Pronunciation

phosphor

/ˈfɒsfə/