Definition of phototelegraphy in English:

phototelegraphy

noun

Telecommunications
historical
  • The telegraphic transmission of pictures; specifically facsimile telegraphy in which variations of tone are preserved.

Origin

Late 19th century. From photo- + telegraphy. Compare slightly earlier telephotography, and also earlier phototelegram.

Pronunciation

phototelegraphy

/ˌfəʊtəʊtɪˈlɛɡrəfi/