The ship needed more ballast to stay balanced in the water.
A heavy material used to provide stability to a ship or other vehicle.
The workers added ballast to the foundation for extra support.
Material used in construction to improve the stability of a structure.
They need to ballast the boat before the storm hits.
To provide stability or support to something.
The light flickered because the ballast was broken.
A device that regulates the current in a fluorescent light.
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