Dictionary

n.
1.any heavy material used to stabilize a ship or airship
2.coarse gravel laid to form a bed for streets and railroads
3.an attribute that tends to give stability in character and morals
4.a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
5.an electrical device for starting and regulating fluorescent and discharge lamps ballast v.
1.make steady with a ballast

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