First Known Use: 1976
Dictionary
heliosphere
noun he·li·o·sphere \ˈhē-lē-ə-ˌsfir, -ō-\
Definition of HELIOSPHERE
: the region in space influenced by the sun or solar wind
— he·li·o·spher·ic \ˌhē-lē-ə-ˈsfir-ik, -ˈsfer-, -lē-ō-\ adjective
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Origin of HELIOSPHERE
International Scientific Vocabulary
Rhymes with HELIOSPHERE
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