thunder egg

A form of thunderegg — A roughly spherical, nodule-like geological structure, similar to a geode, that is formed within a rhyolitic lava flow.

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Meanings

nounthunder egg (plural thunder eggs)

plural thunder eggs

  1. alternativeAlternative form of thunderegg.
Cite this entry
APA

thunder egg. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thunder%20egg

MLA

“thunder egg.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thunder%20egg. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thunder egg,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thunder%20egg.

Source: thunder egg on Wiktionary, CC BY-SA 4.0.