arrester
nounUK /əˈrɛstə/
US /əˈrɛstər/
A thing or person that stops something from happening.
The lightning arrester kept the house safe during the storm.
RELATED WORDS
OTHER MEANINGS
2. A device that protects electrical equipment from lightning or power surges.
The engineer installed a surge arrester on the power line.
3. A person who arrests someone, such as a police officer.
The arrester read the suspect his rights.
4. A device on an aircraft carrier that catches and slows landing planes.
The jet's tailhook caught the arrester wire.
5. A chemical that stops a process, such as a flame arrester.
The flame arrester prevented the fire from spreading through the pipe.