Noun

(head)

(pluralonly) Telecommunications, the science and technology of communicating, especially by electronic means.

* {{quote-magazine, date=2012-12-14

, author=Simon Jenkins, authorlink=Simon Jenkins , title=We mustn't overreact to North Korea boys' toys , volume=188, issue=2, page=23 , date=2012-12-21 , magazine= citation , passage=David Cameron insists that his latest communications data bill is “vital to counter terrorism”. Yet terror is mayhem. It is no threat to freedom. That threat is from counter-terror, from ministers capitulating to securocrats.}}

Noun

(wikipedia telecommunication)

(uncountable) The science and technology of the communication of messages over a distance using electric, electronic or electromagnetic impulses.

(countable) A message so transmitted.