plasmasphere

P3L1A1S1M3A1S1P3H4E1R1E1

noun

The inner region of the magnetosphere, containing relatively cold, dense plasma, above the ionosphere

OriginEnglish sphere ← Middle English spere ← Old French sphere →
RareScrabble 21
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Meanings

nounplasmasphere (plural plasmaspheres)

plural plasmaspheres

  1. The inner region of the magnetosphere, containing relatively cold, dense plasma, above the ionosphere

Origin

  1. Proto-Hellenic*plátʰyō
  2. Proto-Hellenic*plát͏̌t͏̌ō?
  3. Ancient Greekπλάσσω (plássō)
  4. Ancient Greekπλᾰ́σμᾰ (plắsmă)
  5. Late Latinplasma
  6. Englishplasma
  7. Ancient Greekσφαῖρᾰ (sphaîră)
  8. Latinsphaera
  9. Late Latinsphēra
  10. Old Frenchsphere
  11. Middle Englishspere
  12. Englishsphere
  13. Englishplasmasphere

From plasma + -sphere.

Full word history & related roots →
Cite this entry
APA

plasmasphere. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/plasmasphere

MLA

“plasmasphere.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plasmasphere. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “plasmasphere,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/plasmasphere.

Source: plasmasphere on Wiktionary, CC BY-SA 4.0.