telegraphoscope

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noun

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.

Scrabble 25
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Meanings

nountelegraphoscope (plural telegraphoscopes)

plural telegraphoscopes

  1. historicalAn 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.

Origin

From telegraph + -o- + -scope.

Full word history & related roots →
Cite this entry
APA

telegraphoscope. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/telegraphoscope

MLA

“telegraphoscope.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/telegraphoscope. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “telegraphoscope,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/telegraphoscope.

Source: telegraphoscope on Wiktionary, CC BY-SA 4.0.