A groove, channel, or fluted pattern carved or formed into a surface, often seen in architecture or metalwork.
From Old French 'alure' and Latin 'allura'; possibly related to 'allure,' originally describing a groove or track that guides movement or flow.
Alurs in ancient architecture weren't just decorative—fluted columns with alurs were actually stronger while using less material, which is why Roman engineers loved them for supporting massive buildings.
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