| A | B |
|---|
| telecommunication | communication over a distance by radio, telephone, telegraph, etc. |
| telegraph | a system for transmitting messages by signals |
| telephone | an instrument for conveying speech over distances by converting sounds into electric impulses sent through a wire |
| telephoto | a camera lens that produces a large image of a distant object |
| telescope | an instrument for making distant objects (stars) appear nearer and larger |
| teletypewriter | a form of telegraph in which the receiver, by electric impulses, prints messages typed on the keyboard of the transmitter |
| television | an instrument that receives images transmitted by converting light waves into electronic impulses |
| telepathy | communication between minds by means other than the normal sensory channels |
