• Webster's Revised Unabridged Dictionary
    • n Phototelegraphy Telegraphy by means of light, as by the heliograph or the photophone. Also, less properly, telephotography.
    • ***
Century Dictionary and Cyclopedia
    • n phototelegraphy The transmission of signals to a distance by means of light.
    • n phototelegraphy The electric transmission of facsimiles of photographs, drawings, etc.; facsimile telegraphy.
    • ***