Definition of heliosphere
: the region in space influenced by the sun or solar wind
heliosphericplay \ˌhē-lē-ə-ˈsfir-ik, -ˈsfer-, -lē-ō-\ adjective
Recent Examples of heliosphere from the Web
Less solar wind would mean that the heliosphere–a bubble around the solar system maintained by particles emitted from the sun–shrinks significantly.
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Origin and Etymology of heliosphere
International Scientific Vocabulary
First Known Use: 1976See Words from the same year
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