fusible vs molten

fusible

adj

  • Able to be fused or melted. 

noun

  • Any substance that can be fused or melted. 

molten

adj

  • Made from a melted substance. 

  • Glowing red-hot. 

  • Melted. 

How often have the words fusible and molten occurred in a corpus of books? (source: Google Ngram Viewer )