Tel`e*graph"o*scope (?), 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, ralay, equilibrator, and an induction coil the sparks from which perforate a paper with tiny holes that form the image.
© Webster 1913