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Definition of: diastrophism
(dī·as′trə·fiz′əm) noun Geol.
1. The process of deformation of the earth's crust, producing continents and ocean beds, plateaus, mountains, valleys, folds, and faults.
2. Any deformation so caused. [<Gk. diastrophē <dia- across + strephein turn]
—di·a·stroph·ic (dī′ə·strof′ik) adjective
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