telegraphy

Meanings

1. 1
   noun

   the practice or technology of transmitting coded messages over long distances by electrical, optical, or radio signals

   Nineteenth-century telegraphy encoded messages as electrical pulses sent along wires.

2. 2
   noun

   the science and techniques of generating, sending, receiving, and decoding telegraphic signals

   The engineering course covered telegraphy, including signal generation, coding, and reception.

Formed from telegraph + -y. Telegraph was coined from Greek tele ("far off") + graphein ("to write"), literally "writing at a distance." Telegraphy first covered optical and wired systems and later included wireless transmission of coded messages by radio.

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