Why is melting called fusion ?

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Melting is referred to as "fusion" due to its etymological roots in the Latin word "fundere," meaning "to pour" or "to melt." This terminology reflects the process of molecules moving apart during melting, which can seem counterintuitive. In chemistry, "fusion" emphasizes the melting aspect, while other contexts, like nuclear fusion, focus on the idea of combining elements. The term "fondu" in French captures both meanings of melting and mixing. Understanding this etymology clarifies the connection between melting and fusion.
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why is "melting" called "fusion"?

any idea why is "melting" called "fusion"?

molecules during melting are moving farther apart, they are not "fusing" together. It seems counterintuitive to call "melting" "fusion"
 
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thank you! I can now sleep better, haha
i see the etymology stems from Latin "fundere," to "pour to melt" "melting together"
i guess, in chemistry, fusion retained the "melting" aspect of its roots, whereas other uses of the word, such as nuclear fusion, jazz fusion, retained the "bringing things together" aspect of the root
"fondu" has retained both the "melting" and the "mixing together" meanings of the word
thanks again
 


I'd actually never seen that definition of the word before...
 
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