jumpwire
nounUK /ˈdʒʌmpwaɪə/
US /ˈdʒʌmpwaɪər/
A jumpwire is a short wire used to connect two things so electricity can flow.
The mechanic used a jumpwire to start the old car's engine.
OTHER MEANINGS
2. A temporary wire used to bypass a broken part of an electrical circuit.
He fixed the broken switch with a jumpwire until the new part arrived.
3. A wire used to connect a battery to another battery to give it power.
She grabbed a jumpwire from the trunk to help the stranded driver.
4. A short wire used in electronics to make a quick test connection.
The student placed a jumpwire across the pins to test the circuit board.