In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current.

What does being fused mean?

If something's fused, it's connected or joined to something else. Fused wires have been soldered together, and fused families are connected through love, marriage, or children. When two things are fused, they become one fused whole — permanently attached and combined.

What is fusing in medical terms?

The joining of two bones into a single unit, thereby obliterating motion between the two.