Word Study
telegraphic signal |
telegraphical |
telegraphically |
telegraphist |
telegraphone |
telegraphoscope
| telegraphy
| telegu
| telehydrobarometer
| telekinesis
| telelectric
telegraphoscope
CIDE DICTIONARY
telegraphoscope, n. [Gr. th^le far + -graph + -scope.].
An instrument for telegraphically transmitting a picture and reproducing its image as a positive or negative. The transmitter includes a camera obscura and a row of minute selenium cells. The receiver includes an oscillograph, relay, equilibrator, and an induction coil the sparks from which perforate a paper with tiny holes that form the image. It is now (1999) obsolete, having been replaced by telefax and internet transmission of images. [Webster 1913 Suppl.]
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