BALLAST

Definition of BALLAST

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