exoatmospheric

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adjective

Pertaining to, or occurring in the nearby region of space outside the Earth's atmosphere

OriginEnglish atmospheric ← French atmosphère ← Late Latin sphēra →
Scrabble 30
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Meanings

exoatmospheric1

adjectiveexoatmospheric (not comparable)
  1. not comparablePertaining to, or occurring in the nearby region of space outside the Earth's atmosphere

exoatmospheric2

adjectiveexoatmospheric (not comparable)
  1. abbreviationnot comparableAbbreviation of exoplanetary atmospheric (“pertaining to the atmospheres of exoplanets”).

Origin

exoatmospheric · adjective

  1. Proto-Indo-European*h₁éǵʰ
  2. Proto-Indo-European*h₁eǵʰs
  3. Proto-Hellenic*eks
  4. Ancient Greekἐκ (ek)
  5. Ancient Greekἔξω (éxō)
  6. Englishexo-
  7. Ancient Greekἀτμός (atmós)
  8. Frenchatmo-
  9. Ancient Greekσφαῖρᾰ (sphaîră)
  10. Latinsphaera
  11. Late Latinsphēra
  12. Frenchatmosphère
  13. Englishatmospher(e)
  14. Englishatmospheric
  15. Englishexoatmospheric

From exo- + atmospheric.

Full word history & related roots →

exoatmospheric · adjective

Blend of exoplanet + atmospheric.

Full word history & related roots →
Cite this entry
APA

exoatmospheric. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/exoatmospheric

MLA

“exoatmospheric.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exoatmospheric. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “exoatmospheric,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/exoatmospheric.

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