petrogenesis
(pe′trə jen′ə sis)
noun
- the branch of petrology that studies the origin and formation of rocks
- the origin of a rock
See petrogenesis in American Heritage Dictionary 4
noun The branch of petrology that deals with the origin of rocks, especially igneous rocks.
Related Forms:
- petˌro·ge·netˈic (-jə-nĕtˈĭk) adjective
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