Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun heliopause

1 sense of heliopause

Sense 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)
       => boundary, bound, bounds -- (the line or plane indicating the limit or extent of something)