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WordReference Random House Learner's Dictionary of American English © 2024ˈcon•tiˈnen•tal ˈdrift, n. [uncountable]- Geologythe sideways movement of continents resulting from the motion of the earth's crust.
WordReference Random House Unabridged Dictionary of American English © 2024con′tinen′tal drift′, - Geologythe lateral movement of continents resulting from the motion of crustal plates. Cf. plate tectonics.
Collins Concise English Dictionary © HarperCollins Publishers:: continental drift n - the theory that the earth's continents move gradually over the surface of the planet on a substratum of magma. The present-day configuration of the continents is thought to be the result of the fragmentation of a single landmass, Pangaea, that existed 200 million years ago
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