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magnetosheath

[mag-nee-tuh-sheeth]
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noun Astronomy.
  1. the region between the magnetopause of the earth or of some other planet and the shock front caused by the solar wind.
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Origin of magnetosheath

First recorded in 1965–70; magneto- + sheath
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018