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 recording, study, and interpretation of electroencephalographic wave patterns or a technique for recording electrical activity in the brain, whose cells emit distinct patterns of rhythmic electrical impulses.
The best known process of electrostatic printing is known as xerography.2. A procedure in which a positive electrostatic charge is given to a paper on which an image is projected.
A bright light reverses the charge of the non-image area so that the negatively charged powdered ink sticks firmly only to the positive image area.
Established by the Xerox Corporation, it is about the most common dry photocopying process in use today.3. A plotter or computer output device that draws graphs and other pictorial images on paper which uses an electrostatic method of printing.
Liquid toner models use a positively charged toner that is attracted to paper which is negatively charged by passing by a line of electrodes (tiny wires or nibs).
Models print in black and white or color, and some handle paper up to six feet wide.
Newer electrostatic plotters are really large-format laser printers and focus light onto a charged drum using lasers or LEDs (light-emitting diodes) which is a semiconductor that emits light when a current passes through it.
2. The process of recording and reproducing visible patterns with the formation and utilization of inactive electrostatic charge patterns.
3. A generic term covering all processes involving the forming and use of electrostatic charged patterns for recording and reproducing images.
This field of recording and reproducing images is divided into electrophotography and electrography.
2. A very sensitive, electrically operated instrument used to record sounds of the heart.
This is an instrument which gives doctors a high-fidelity record of heart sounds so faint they can't be heard by human ears even with the aid of a physician's stethoscope.
2. Written publications about unexplainable happenings or circumstances: Several enigmatographers presented some difficult issues about human life.
Related "writing" word units: