balancer

Almost all Asian nations want America as the balancer and protector against an increasingly demanding Beijing.

When the elevated cell of the balancer was filled, its weight caused it to fall.

In the electro-magnet circuit was a small water-balancer B having two cells and a see-saw motion.

After several falls and painful injuries, it was rejected for the feat and tried out as a plate-balancer.

In Stringfellow's and Tatin's models the main aerofoil and balancer (tail) are practically contiguous.

I had been a good balancer in my contortion days, and this was also an asset.