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1. The study of the remnant magnetization in rocks.
2. The earth's magnetic field as it existed in the past.
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.
(Geological Science) a variant spelling of palaeomagnetism
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pa•le•o•mag•net•ism(ˌpeɪ li oʊˈmæg nɪˌtɪz əm; esp. Brit. ˌpæl i-)
magnetic polarization acquired by the minerals in a rock at the time the rock was deposited or solidified.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
The magnetic alignment of particles in rock that occurred when the rock formed. It reflects the Earth’s magnetic field at the time.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited