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“petrographic”
petrographic (adjective), more petrographic, most petrographic
A reference to the descriptions and classifications of rocks: Petrographic procedures are used in laboratory examinations of marble, for example, by using acid, an electromagnet, and chemical analysis.
This entry is located in the following units:
grapho-, graph-, -graph, -graphy, -grapher, -graphia
(page 66)
petro-, petr-, petri-, peter-
(page 3)