telegraphoscope en · NOUN
Etymology
From telegraph + -o- + -scope.
Meanings
- (historical) 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 whose sparks perforate a paper with tiny holes that form the image.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| telegraphoscopes | Number=Plur | lexicographic |