Definition of "magnetic equator" [magnetic equator]

• A line connecting all points on the earth's surface at which a magnetic needle balances horizontally without dipping. Also called aclinic line. (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.