Definition of phosphorograph in English:

phosphorograph

noun

rare
  • An image, especially of a spectrum, made on a phosphorescent surface by illumination with infrared or other radiation.

Origin

Late 19th century; earliest use found in John William Draper (1811–1882), chemist and historian. From phosphoro- + -graph.

Pronunciation

phosphorograph

/ˈfɒsf(ə)rə(ʊ)ɡrɑːf//ˈfɒsf(ə)rə(ʊ)ɡraf/