phosphorescent

From phosphorus + -escent. It's interesting to note that technically phosphorus is not phosphorescent. Phosphorus is luminescent, it gives off light from a chemical reaction, as opposed to re-emission of absorbed energy (phosphorescence). (Reference: John Emsley, The Shocking History of Phosphorus, →ISBN.)

phosphorescent (comparative more phosphorescent, superlative most phosphorescent)

1. Having the property of emitting light for a period of time after the source of excitation is taken away, e.g., in electrostatic storage tubes and cathode-ray tubes.
   • 1961, William S. Burroughs, The Soft Machine, page 11

     So he imports this special breed of scorpions and feeds them on metal meal and the scorpions turned a phosphorescent blue color and sort of hummed.

• phosphorescence
• phosphorescently

• phosphor
• phosphoresce
• phosphoroscope

phosphorescent (plural phosphorescents)

1. A phosphorescent substance.

From phosphore.

• IPA^(key): /fɔs.fɔ.ʁe.sɑ̃/

phosphorescent (feminine singular phosphorescente, masculine plural phosphorescents, feminine plural phosphorescentes)

1. phosphorescent

• “phosphorescent” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).