Geode
//ˈd͡ʒiː.oʊd// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A nodule of stone having a cavity lined with mineral or crystal matter on the inside wall.
- 2 Acronym of generic object of dark energy, a theoretical alternative to black holes; an object with an event horizon enclosing an interior composed of dark energy. abbreviation, acronym, alt-of
- 3 (mineralogy) a hollow rock or nodule with the cavity usually lined with crystals wordnet
Etymology
From French géode, from Latin geōdēs, from Ancient Greek γεώδης (geṓdēs, “earthlike”), equivalent to γῆ (gê, “earth”) + -ώδης (-ṓdēs).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.