Definition of telephonograph in English:

telephonograph

noun

historical
  • Originally: a device consisting of a combination of a telephone and a phonograph, used for making permanent audio records of telephone conversations and for transmitting recorded speech over a telephone. In later use: any of various devices designed for the purpose of making audio recordings of telephone calls.

Origin

Late 19th century (in an earlier sense). Either a blend of telephone and phonograph.

Pronunciation

telephonograph

/tɛlɪˈfəʊnəɡrɑːf/ /tɛlɪˈfəʊnəɡraf/