Geologic
/dʒˌiəˈlɑdʒɪk/
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Definition
(adj) Of, or relating to geology or a geologic time scale.
Sentence Examples
The Grand Canyon is a spectacular geologic formation.
They are studying the geologic history of the continent.
CEFR Practice Quiz
Large-scale ____ processes like plate tectonics are responsible for the formation of massive mountain ranges.