Definition of phototelegraphic in US English:

phototelegraphic

adjective

Telecommunications
  • Of or relating to the telegraphic transmission of images.

Origin

Early 20th century; earliest use found in The Trenton Times. From photo- + telegraphic, after phototelegraphy.

Pronunciation

phototelegraphic

/ˌfəʊtəʊtɛlɪˈɡrafɪk/