Using the standard name can aid understanding by allowing the audience to connect what you're saying to what they already know. However, if the audience's existing knowledge is tainted by fears, misconceptions and confusion, then the connection may hinder more than it helps. In that case, it might be better to make up a new name so the explanation can stand on its own.

I don't know if "magic" was the best choice, but you can still explain all the details of how it works even if you call it something else.