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n. (context astronomy English) The region of space where interstellar medium is blown away by solar wind; the boundary, heliopause, is often considered the edge of the Solar System.


n. the region inside the heliopause containing the sun and solar system

Usage examples of "heliosphere".

I opened my wings wider to catch the blazing gust of light at the same instant the ergs on the Startree below folded the heliosphere matrix, bending the plasma stream back against Aenea and me, decelerating both of us rapidly but not painfully so.