'Phosphor' definitions:

Definition of 'phosphor'

From: WordNet
noun
A synthetic substance that is fluorescent or phosphorescent; used to coat the screens of cathode ray tubes

Definition of 'Phosphor'

From: GCIDE
  • Phosphor \Phos"phor\ (f[o^]s"f[^o]r or f[o^]s"f[o^]r), n. [Cf. G. phosphor. See Phosphorus.]
  • 1. Phosphorus. [Obs.] --Addison. [1913 Webster]
  • 2. The planet Venus, when appearing as the morning star; Lucifer. [Poetic and Rare] --Pope. --Tennyson. [1913 Webster]
  • 3. A phosphorescent substance. [archaic] [PJC]
  • 4. A substance capable of exhibiting luminescence. This term is now most commonly used to refer to substances used in fluorescent lights, image intensifiers, or cathode-ray tubes (CRT's), which luminesce when excited by ultraviolet radiation or an electron beam. In color CRT's, three different phosphors, each giving different colors when excited, are used. [PJC]

Synonyms of 'phosphor'

From: Moby Thesaurus