(nautical) A device used by the pilot in the bridge to communicate the desired speed of the engines to the people manning the engine room.

plural of engine order telegraph

Telegraphy by radio rather than by transmission cables / The use of radio to send signals by Morse code

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.

A telegrapher.

plural of telegraphist

plural of wireless telegraphy

The transmission of Morse code (etc) using radio

plural of telegraphy

The terse, abbreviated writing style used in or as used in telegraph messages; speech that resembles this.