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Conveying sound to a great distance.

By telephonic means or processes; by the use of the telephone.

cts. cellular telephone, a portable radio- telephone transmitting and receiving the radio-telephonic signals from one of a group of transmitter-receiver stations so arranged that they provide adequate signal contact for such telephones over a certain geographical area. The area within which one transmitter may service…

A telephonic instrument for office or other similar use, having a sound-magnifying device enabling the ordinary mouthpiece to be dispensed with. Much use has been made of it for overhearing, or for recording, conversations for the purpose of obtaining evidence for use in litigation.

That portion of a telephonic apparatus, or similar system, at which the message is received and made audible; -- opposed to transmitter. Exhausted receiver (Physics), a receiver, as that used with the air pump, from which the air has been withdrawn; a vessel the interior of which is a more or less complete vacuum.…

One who, or that which, transmits; specifically, that portion of a telegraphic or telephonic instrument by means of which a message is sent; -- opposed to receiver.