The study or theory of slow earth movements; the phenomenon of bradyseism.
From Greek 'brady-' (slow), 'seismos' (earthquake), and '-ism' (doctrine, practice). The '-ism' suffix converts it to an abstract noun representing the concept.
Bradyseismism is the grand-scale thinking geologists do when they realize the Earth's surface is constantly reshaping itself invisibly—it's humbling to think about geological time.
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