stabilizer
nounUK /ˈsteɪ.bəl.aɪ.zər/
US /ˈsteɪ.bəl.aɪ.zɚ/
A thing that helps something stay steady and not fall over.
The training wheels act as a stabilizer so the bike doesn't tip.
OTHER MEANINGS
2. A substance added to food or a mixture to keep it from changing.
The ice cream contains a stabilizer to keep it smooth.
3. A device on a ship or aircraft that reduces rolling or shaking.
The ship's stabilizer kept the deck calm in rough seas.
4. A chemical added to a plastic or explosive to keep it from breaking down.
A stabilizer was mixed into the fuel to prevent it from spoiling.