cenosphere

C3E1N1O1S1P3H4E1R1E1

noun

A porous or hollow carbonaceous sphere-like particle formed during pyrolysis or in the course of the combustion of coal.

OriginEnglish sphere ← Middle English spere ← Old French sphere →
Scrabble 17
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Meanings

nouncenosphere (plural cenospheres)

plural cenospheres

  1. A porous or hollow carbonaceous sphere-like particle formed during pyrolysis or in the course of the combustion of coal.

Origin

  1. Proto-Hellenic*kenwós
  2. Ancient Greekκενός (kenós)
  3. Englishceno-
  4. Ancient Greekσφαῖρᾰ (sphaîră)
  5. Latinsphaera
  6. Late Latinsphēra
  7. Old Frenchsphere
  8. Middle Englishspere
  9. Englishsphere
  10. Englishcenosphere

From ceno- + -sphere.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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