noun
- scientists who study the composition, structure, and origin of rocks
Usage: geology
Examples
- The petrographers examined thin sections of the volcanic rock under microscopes.
- Several petrographers collaborated on the study of ancient granite formations.
- The university hired two new petrographers for the geology department.
- Petrographers use specialized equipment to analyze mineral compositions.
- The team of petrographers published their findings on sedimentary rock layers.
- Field work is essential for petrographers studying regional rock formations.