heliopause(redirected from heliopauses)
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The outer boundary of the heliosphere.
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(Astronomy) the boundary between the region of space dominated by the solar wind and the interstellar medium
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|Noun||1.||heliopause - the boundary marking the edge of the sun's influence; the boundary (roughly 100 AU from the sun) between the interplanetary medium and the interstellar medium; where the solar wind from the sun and the radiation from other stars meet|
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