Definitions of ballast:

  • noun:   any heavy material used to stabilize a ship or airship
  • noun:   an electrical device for starting and regulating fluorescent and discharge lamps
  • noun:   an attribute that tends to give stability in character and morals; something that steadies the mind or feelings
  • noun:   coarse gravel laid to form a bed for streets and railroads
  • noun:   a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
  • verb:   make steady with a ballast