grapho-, graph-, -graph, -graphy, -grapher, -graphia
(Greek: to scratch; to write, to record, to draw, to describe; that which is written or described)
As indicated at the bottom of this page, there is a significantly large number of graphic word-entry groups in this unit. Such an extensive listing is provided to show how important the grapho- element is to the English language.
2. The written description of the arts, forming the preliminary stage of technology.
In the transmitter the motions of the pencil are communicated by levers to two rotary shafts, by which variations in current are produced in two separate circuits.
In the receiver these variations are utilized by electromagnetic devices and levers to move a pen as the pencil moves.
Devices for this purpose have been in use from ancient times, but the name was first applied to that system invented by Chappe in France in 1792, consisting of an upright post with movable arms, the signals being made by various positions of the arms according to a pre-arranged code.
Applied to various other devices subsequently used, operating by movable disks, shutters, etc., flashes of light, movements in a column of liquid, sounds of bells, horns, etc., or other means. Now rare in this sense, such contrivances being usually called semaphores or signalling apparatus.2. In full, electric (or magnetic) telegraph: An apparatus consisting of a transmitting instrument (transmitter), a receiving instrument (receiver), and a line or wire of any length connecting these, along which an electric current from a battery or other source passes, the circuit being made and broken by working the transmitter, so as to produce movements, as of a needle or pointer, in the receiver, which indicate letters, etc., either according to a code of signs, or by pointing to characters upon a dial.
In some forms the receiver works so as to print or trace the message upon a prepared strip of paper.
2. The sender of a telegram.
2. Having the style of a telegram with many short words left out.
3. Concise or elliptical in spoken or written expressions.
2. The working of a telegraph or telegraphs.
3. Communication over a distance by means of code signals which are composed of electrical or electromagnetic pulses and that are sent over wires or by radio.