heliosphere - WordReference.com Dictionary of English

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- - helicon
  - helicopter
  - helicopter view
  - helio-
  - heliocentric
  - heliogram
  - heliograph
  - heliogravure
  - heliometer
  - heliopause
  - heliosphere
  - heliostat
  - heliotherapy
  - heliotrope
  - heliotropism
  - helipad
  - heliport
  - helium
  - helix
  - hell
  - hell-bent
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heliosphere

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Concise Oxford English Dictionary © 2008 Oxford University Press:
heliosphere/ˈhiːlɪəsfɪə/

▶noun Astronomy the region of space, encompassing the solar system, in which the solar wind has a significant influence.

– derivatives
heliospheric adjective.

'heliosphere' also found in these Oxford entries:

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