Heliosphere

Origin

- + sphere + -

Full definition of heliosphere

Noun

1. (astronomy) 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.

Hypernyms

• astrosphere

Coordinate terms

• heliopause
• heliosheath
• termination shock
• stellar magnetosphere
• stellar wind