foolproofbrake
nounUK /ˈfuːl.pruːf.breɪk/
US /ˈfuːl.pruːf.breɪk/
A brake that is made so safe it is very hard to use the wrong way.
The bike has a foolproofbrake so little kids can stop safely.
OTHER MEANINGS
2. A braking system with a backup that works even if the main part fails.
Engineers tested the foolproofbrake on the train before it carried passengers.
3. A simple brake design meant to prevent mistakes by the user.
The scooter's foolproofbrake can be squeezed by even the smallest hands.
4. A brake that locks automatically when something goes wrong.
When the cable snapped, the foolproofbrake kicked in and stopped the cart.