fuse
US /fjuːz/
UK /fjuːz/

1.
a safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level
:
•
The lights went out because a fuse blew.
•
You need to replace the blown fuse.
1.
a safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level