Fuse. A fuse in an electronic device can be irreversibly blown, opening a circuit. This is used for thermal protection. And in FPGAs and other field-programmable devices, to permenantly set a topology of circuit or logic elements, by blowing fuses.
And in electrosurgery, you can fuse tissue, joining, like welding, albeit without the addition of the welding rod.
Name collision. Not uncommon, really.
