paleomagnetism
noun
pa·leo·mag·ne·tism
ˌpā-lē-ō-ˈmag-nə-ˌti-zəm 
especially British ˌpa-
1
: the intensity and direction of residual magnetization in ancient rocks
2
: a science that deals with paleomagnetism
Examples of paleomagnetism in a Sentence
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AlamyMerriam Crater and Grand Falls Merriam Crater and some other nearby volcanic vents erupted ~20,000 years ago (based on exposure dating of the lava flows and paleomagnetism) and sent lava flows over 10 kilometers towards the Little Colorado River canyon.
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Erik Klemetti, Discover Magazine, 7 Mar. 2017
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Erik Klemetti, Discover Magazine, 7 Mar. 2017
Cite this Entry
“Paleomagnetism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/paleomagnetism. Accessed 31 Oct. 2025.
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