(astronomy) A telescope, having a wide field of view, comprising a thin aspheric lens and a large concave mirror

(uncountable) The broadcasting and receiving of television services via digital (rather than analog) signals, either broadcast, or via cable or satellite.

The use of television to spread countercultural propaganda.

A segment of the PEG (short for public, educational, and government access) television model of local cable television production. It provides training and access to media production technology and distribution methods so that community producers and viewers may participate.

Telemetry by use of radio waves.

Synonym of teletype, a telegraph that automatically prints transmited messages in letters rather than Morse code or other symbols.

(astronomy) An instrument that detects X-rays originating from outside the Earth's atmosphere.

A telegraph post

A telephone number for which an extra charge is assessed to the caller, part of which is returned to the owner of the number.

plural of premium-rate telephone number