tel·e·com·mu·ni·ca·tions

[tel-i-kuh-myoo-ni-key-shuhnz]
noun
1.
Sometimes, telecommunication. ( used with a singular verb ) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.
2.
Sometimes, telecommunication. ( used with a singular verb ) the science and technology of such communication.
3.
telecommunication, a message so transmitted.
adjective
4.
of or pertaining to telecommunications.

Origin:
1930–35; tele-1 + communication + -s3

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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00:10
Telecommunication is always a great word to know.
So is slumgullion. Does it mean:
a stew of meat, vegetables, potatoes, etc.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
Collins
World English Dictionary
telecommunication (ˌtɛlɪkəˌmjuːnɪˈkeɪʃən) [Click for IPA pronunciation guide]
 
n
the telegraphic or telephonic communication of audio, video, or digital information over a distance by means of radio waves, optical signals, etc, or along a transmission line

telecommunications (ˌtɛlɪkəˌmjuːnɪˈkeɪʃənz) [Click for IPA pronunciation guide]
 
n
(functioning as singular) the science and technology of communications by telephony, radio, television, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

telecommunication
1932, from Fr. télécommunication (see tele- + communication).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
telecommunication   (těl'ĭ-kə-my'nĭ-kā'shən)  Pronunciation Key 
The science and technology of sending and receiving information such as sound, visual images, or computer data over long distances through the use of electrical, radio, or light signals, using electronic devices to encode the information as signals and to decode the signals as information.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Some line installers, called cable splicers, specialize in splicing together
  two telecommunication lines.
The optimism has been tempered of late by business woes among telecommunication
  companies, but the technology remains impressive.
The telecommunication link is required to function reliably in potentially
  severe scintillation conditions.
Today censor and cutting telecommunication lines can not hide the truth.
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