thunderegg

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English[edit]

Alternative forms[edit]

Etymology[edit]

thunder +‎ egg

Noun[edit]

thunderegg (plural thundereggs)

English Wikipedia has an article on:
Wikipedia
  1. A roughly spherical, nodule-like geological structure, similar to a geode, that is formed within a rhyolitic lava flow.

Translations[edit]

Translations
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