Word.ws English Dictionary

heliosheath

heliosheath noun: 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.

Noun

heliosheath (plural heliosheaths)

  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.2023, Martin MacInnes, In Ascension, Atlantic Books, page 388

Forms of heliosheath

pluralheliosheaths

Origin of heliosheath

From helio- + sheath.

Questions about heliosheath

What does heliosheath mean?
Heliosheath means 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.
What part of speech is heliosheath?
Heliosheath is a noun.
What is the plural of heliosheath?
The plural of heliosheath is heliosheaths.

Words near heliosheath in the dictionary

  1. helioseismologically
  2. helioseismologist
  3. helioseismologists
  4. helioseismology
  5. helioses
  6. heliosheath
  7. heliosheaths
  8. heliosis
  9. heliospectrograph
  10. heliosphere
  11. heliospheres

Source and license

Adapted from Wiktionary: heliosheath (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-heliosheath.wav.

Cite this entry: “heliosheath.” Word.ws, https://word.ws/heliosheath. Based on Wiktionary, CC BY-SA 4.0.