A telegraph having a dial marked with numbers and the letters of the alphabet, and operated in such a way that the needle on the dial at a receiving station copies the movements of that at the transmitting station.
Origin
Mid 19th century; earliest use found in Hull Packet.
Definition of dial telegraph in US English:
dial telegraph
noun
historical
A telegraph having a dial marked with numbers and the letters of the alphabet, and operated in such a way that the needle on the dial at a receiving station copies the movements of that at the transmitting station.
Origin
Mid 19th century; earliest use found in Hull Packet.