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The character 镗, simplified from 鏜, combines the semantic radical 钅 (metal) with the phonetic component 堂 (hall). Its traditional form uses the full metal radical 金. Historically, 镗 was primarily an onomatopoeia for the resonant sound of struck metal, like bells or gongs. In modern usage, it was borrowed phonetically to represent the mechanical process of "boring" a hole in metal, as seen in the term 镗床 (boring machine). The metal radical appropriately connects both its ancient acoustic meaning and its contemporary industrial application.
Etymology Hide
