1. The transmission of encoded sound, pictures, or data over significant distances, using radio signals or electrical or optical lines: "The secret telecommunications were picked up by the receiver that was hidden in the barn."
2. The science and technology of communication at a distance by electronic transmission of impulses, as by telegraph, cable, telephone, radio, or television.

"Telecommunications is an important area of professional growth in modern technology."

3. The electronic systems used in transmitting messages; such as, by telegraph, cable, telephone, radio, or television.

"Telecommunications were disrupted by the severe winter wind and ice storms."

4. Any process that allows a person to communicate over distances by means of an electromagnetic system, with information in the form of sound, text, images, and so on; with a telephone system: "The telecommunications that are currently available to various business complexes enhance their ability to expand and be competitive."

The European Union body that recommends standards for adoption by member countries.