Meanings
nouncoal ball (plural coal balls)
plural coal balls · alternative coalball
- A nodule of plant material permeated with minerals found mostly in bituminous and anthracite coal seams
Cite this entry
APA
coal ball. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/coal%20ball
MLA
“coal ball.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/coal%20ball. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “coal ball,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/coal%20ball.
Source: coal ball on Wiktionary, CC BY-SA 4.0.