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.
petrographically (adverb), more petrographically, most petrographically
Characterizing how minerals are identified in thin-sections with the use of a special microscope and polarized light: During his course in geology, Steven learned how to petrographically classify inorganic substances by using a special optical instrument which enlarged the material several hundred times.
petrography (s) (noun), petrographies (pl)
The scientific description of the composition and formation of rocks: Petrography is the systematic classification of igneous and metamorphic stones on the basis of their mineralogical and textural relationships; especially, by means of microscopic studies.