Definition of "geomagnetism" [geomagnetism]

• The magnetism of the earth. (noun)
• The study of the earth's magnetism. (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.

• "Britain's refusal to accept the metric system is odd at first glance: Global research on the tides, geomagnetism and meteorology was spearheaded by British scientists."
• "“Internal bio scans are inconclusive, with all the local geomagnetism.”"
• "He applied these and other insights to an equally impressive range of empirical and theoretical research in observational astronomy, celestial mechanics, surveying, geodesy, capillarity, geomagnetism, electromagnetism, mechanism optics, and actuarial science."