Telegraphy

Definitions

1. Any process for transmitting arbitrarily long messages over a long distance using a code, especially by means of electrified wires or radio waves using Morse code.
   uncountable, usually
2. The science and techniques used to enact this process.
   uncountable, usually
3. The devices and networks used to enact this process.
   uncountable, usually

Equivalents

CEFR level