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The magnetization that an igneous rock acquires, usually from the magnetic field in which it is located, when the temperature of the magma or lava from which it forms falls below the Curie point during the cooling and solidification process.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.