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magnetosphere definition

mag·neto·sphere (mag nēt′ō sfir′, -nēt′ə-; -net′-)

noun

that region surrounding a planet in which the planet's magnetic field is stronger than the interplanetary field: the solar wind gives it a cometlike shape with the tail extending from the night side of the planet for vast distances

Etymology: magneto- + -sphere

Related Forms:

  • magnetospheric mag·ne′·to·spher′ic (-sfer′ik, -sfir′-) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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