retarder
/rɪˈtɑrdər/
noun
- A device or substance that slows down a process or movement.
- The train uses an electromagnetic retarder to reduce speed without wearing out the brakes.
- The truck's retarder helped it slow down safely on the steep mountain road.
- A chemical retarder is added to concrete to prevent it from hardening too quickly.
- A person or thing that causes delay or hindrance.
- In the project, the lack of funding was the main retarder of progress.
- He was seen as a retarder in the group because he always objected to new ideas.
- The broken traffic light acted as a retarder, causing long delays.
Antonyms