magnetosphere

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/mæɡˈniːtəʊˌsfɪə/US:USA pronunciation: respellingUSA pronunciation: respelling(mag nē′tə sfēr′)


WordReference Random House Unabridged Dictionary of American English © 2026
mag•ne•to•sphere  (mag nē′tə sfēr′),USA pronunciation n. [Astron.]
  1. Astronomythe outer region of the earth's ionosphere, where the earth's magnetic field controls the motion of charged particles, as in the Van Allen belts. Cf. magnetopause. 
  2. Astronomysuch a region of another planet:Jupiter's magnetosphere.
  • 1955–60; magneto- + -sphere
mag•ne•to•spher•ic  (mag nē′tə sfer′ik),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
magnetosphere /mæɡˈniːtəʊˌsfɪə/ n
  1. the region surrounding a planet, such as the earth, in which the behaviour of charged particles is controlled by the planet's magnetic field
'magnetosphere' also found in these entries (note: many are not synonyms or translations):
magneto- - solar wind - magnetopause - magnetotail - OGO

Forum discussions with the word(s) "magnetosphere" in the title:


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