IPA: /pəˈtrɒlədʒi/
KK: /pɛˈtrɑlədʒi/
The study of rocks, including how they are formed, their structure, and their chemical makeup.
She decided to study petrology to learn more about the different types of rocks and their properties.
Petrology is formed from "petra" (meaning rock) and "-logy" (meaning study of). The word refers to the scientific study of rocks and their origins, composition, and structure.
Think of 'petra' meaning rock, and '-logy' meaning study — petrology is the study of rocks.