Heliosheath

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A zone between the termination shock and the heliopause, in the heliosphere, at the outer border of the Solar System, where the solar wind is dramatically slower than within the termination shock.

    "We encroach deeper into the furthest extent of the heliosheath, which thins out all the time."

Synonyms

All synonyms
heliopauseheliospherestellar magnetospherestellar windtermination shock

Example

More examples

"We encroach deeper into the furthest extent of the heliosheath, which thins out all the time."

Etymology

From helio- + sheath.

Related phrases

solar systemsolar windtermination shock

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.