magnetopause[mag nēt′ō pôz′, -nēt′ə-]
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
the outer boundary of a magnetosphere that separates a planet's magnetic field from interplanetary space
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The outer boundary of the magnetosphere.