telecommunication-n; 2 Senses

Sense Number 1: the act of transmitting electromagnetic signals across distances

Commentary: TELECOMMUNICATION[+event][+communication][+transmission][+remote][+signal][+electromagnetic]
NOTE: refers to events of actually sending signals (or potentially sending them)

The telecommunication of these messages occurs at the speed of light.
The attack was intended to disrupt their telecommunication capabilities.
The encryption provided secure telecommunications between the military bases.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: the science and technology of signal transmission

Commentary: TELECOMMUNICATION[+entity][+symbolic][+knowledge][+domain][+technology][+transmission][+remote][+signal][+electromagnetic] (often plural) the branch of electrical engineering concerned with the technology of electronic communication at a distance
NOTE: refers to the know-how required to do Sense 1

He worked in the telecommunications industry for many years.
Sally is taking an advanced course in telecommunications.
Their company pioneered many of the recent advances in telecommunications.

WordNet 3.0 Sense Numbers: 2