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.

Printing in colors from wooden blocks.
chronocyclegraph (s) (noun), chronocyclegraphs (pl)
A cyclographic time-and-motion study in which the light level varies to permit computation of the speed and direction of body motions: A chronocyclegraph uses little electric lamps that are fastened to the operator's hands, and when the light from the little lamps are turned off, little dots are produced on the film.
chronograph (s) (noun), chronographs (pl)
1. An instrument for recording time with extreme exactness: A chronograph is a watch or clock to which various mechanical devices are attached for the same purpose. It is used in astronomical and other observations, in the timing of races, etc.
2. A highly precise instrument that measures, indicates, and records the elapsed time of an event, also those of a brief duration: Jim had a stopwatch, or chronograph, for the precise timing of the athletes competing in the race.
3. A precise time-keeper used for navigational and astronomical purposes: The chronograph was invented by Louis Moinet in 1816 to use in tracking astronomical objects in the sky.

Aircraft piloting, diving, car racing, and submarine movements also use chronographs in the present day.

chronographer (s) (noun), chronographers (pl)
An obsolete term for someone who writes a record concerning time or the events of time; a chronicler; a chromologer: One famous chronographer was Theophanes from Greece.
chronography (s) (noun), chronographies (pl)
1.A record or description of past occurrences: The chronography that Virginia found among her mother's things included all the places, dates, and events on the family's journey to Europe.
2. The measurement with an instrument for recording time with extreme exactness: Mr. Fast used a watch or stopwatch with various mechanical devices in order to make accurate chronographies of his student's progress with running.

A chronography is also important in astronomical observations.

chronokymograph (s) (noun), chronokymographs (pl)
An instrument that records changes in pressure versus time: At the museum, Mary saw a chronokymograph which was a device that documented the alterations in pressure in regards to time.
chronophotograph (s) (noun), chronophotographs (pl)
One photograph of a series taken at regular intervals: Chronophotographs are important for showing successive phases of a motion.
chronophotography (s) (noun) (no pl)
An early term for cinematic photography: Chronophotography is an old-fashioned photographic method, dating back to the Victorian era, that captures motion in many frames of print.
chronosphygmograph (s) (noun), chronosphygmographs (pl)
An instrument formerly used for the study of the rhythms of the pulse: Jane read in her grandfather's medical book that a chronosphygmograph was used by doctors for determining the throbbing or beating rhythm of a patient's pulse.
chronostratigraphy (s) (noun) (no pl)
The study of geologic history based on the age of rock strata (layers arranged one on top of another) and their time sequences: Chronostratigraphy is the branch of stratigraphy that deals with the ages of rock strata in comparison to time.

Chronostratigraphy is a system of dividing geological time into eras, periods, epochs, and ages.

chrysographer (s) (noun), chrysographers (pl)
An artist who writes descriptions in gold colors.
chrysography (s) (noun), chrysographies (pl)
1. The art of writing in inks containing gold suspended in a small amount of glair or gum.
2. The gold writing produced by this artistic method.
chthonograph (s) (noun), chthonographs (pl)
A history or written description of soils: In Nancy's geology class, the teacher showed them a chthonograph depicting all types and explanations of earth from different parts of the world.
chthonography (s) (noun), chthonographies (pl)
The written history or description of soils: Jack was very interested in the treatise on various kinds of soils in the library and found the chthonography his teacher recommended.
Motion pictures of the passage of a contrast medium through chambers of the heart and great vessels.

Related "writing" word units: glypto-; gram-; scrib-, script-.