thunderegg

English

Alternative forms

thunder egg

Etymology

thunder +‎ egg

Noun

thunderegg (plural thundereggs)

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

Translations

Translations

Chinese:
Mandarin: 雷公蛋石 (léigōng dànshí)
Danish: please add this translation if you can
Esperanto: please add this translation if you can
Finnish: ukkosenmuna
Portuguese: please add this translation if you can

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