Having a shape or appearance resembling a bunch of grapes, typically used to describe minerals or crystal formations.
From Greek botryos (bunch of grapes) + -oid (resembling, like). This descriptive term became standard mineralogical vocabulary in the 19th century.
Geologists use 'botryoid' to describe mineral growths that look like fruit, which seems poetic until you realize that nature actually does follow the same mathematical rules that make grapes bunch together efficiently—it's shape-optimization across scales.
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