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/ˈhiː.li.ə.pɔːz/ · noun
(astronomy) The boundary of heliosphere where the Sun's solar wind is stopped by the interstellar medium..
Use heliopause when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Heliopause means (astronomy) The boundary of heliosphere where the Sun's solar wind is stopped by the interstellar medium..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use heliopause where its definition matches the intended context.
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