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to melt; to thaw; to fuse
to dissolve
火山の熱で岩が鎔けて溶岩になる。
Rocks melt from the volcanic heat and become lava.
銀が鎔けるまで温度を上げ続けた。
I kept raising the temperature until the silver melted.
鎔けたろうそくの蝋が机に垂れた。
Melted candle wax dripped onto the desk.