Definition of Telegraph

Tel´e`graph
n.1.An apparatus, or a process, for communicating intelligence rapidly between distant points, especially by means of preconcerted visible or audible signals representing words or ideas, or by means of words and signs, transmitted by electrical action.
Acoustic telegraph
See under Acoustic.
Dial telegraph
a telegraph in which letters of the alphabet and numbers or other symbols are placed upon the border of a circular dial plate at each station, the apparatus being so arranged that the needle or index of the dial at the receiving station accurately copies the movements of that at the sending station.
Electric telegraph
a telegraph in which an operator at one station causes words or signs to be made at another by means of a current of electricity, generated by a battery and transmitted over an intervening wire.
Facsimile telegraph
See under Facsimile.
Indicator telegraph
See under Indicator.
Pan-telegraph
an electric telegraph by means of which a drawing or writing, as an autographic message, may be exactly reproduced at a distant station.
Printing telegraph
an electric telegraph which automatically prints the message as it is received at a distant station, in letters, not signs.
Signal telegraph
a telegraph in which preconcerted signals, made by a machine, or otherwise, at one station, are seen or heard and interpreted at another; a semaphore.
Submarine telegraph cable
a telegraph cable laid under water to connect stations separated by a body of water.
Telegraph cable
a telegraphic cable consisting of several conducting wires, inclosed by an insulating and protecting material, so as to bring the wires into compact compass for use on poles, or to form a strong cable impervious to water, to be laid under ground, as in a town or city, or under water, as in the ocean.
v. t.1.To convey or announce by telegraph.
[imp. & p. p. Telegraphed ; p. pr. & vb. n. Telegraphing .]


Related Words

Teletype, cable, cablegram, day letter, facsimile telegraph, fast telegram, flash, heliograph, multiplex, night letter, quadruplex, radio, radiogram, radiotelegraph, semaphore telegraph, send a wire, sign off, sign on, telegram, telex, wire

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