The movement, formation, or re-formation of continents described by the theory of plate tectonics.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "continental drift" in a sentence
"Far-sighted and imaginative as Wegener was, I must make it clear that his hypothesis of continental drift was significantly different from our modern theory of plate tectonics."
"Wegener's theory of continental drift was corroborated by fossils and satellite photographs."
"But the walking-ratite scenario was befuddling for biogeographers of earlier generations, before continental drift theory had been developed and accepted."