ballast
ba luhst
- n any heavy material used to stabilize a ship or airship
- n coarse gravel laid to form a bed for streets and railroads
- n an attribute that tends to give stability in character and morals; something that steadies the mind or feelings
- n a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
- n an electrical device for starting and regulating fluorescent and discharge lamps
- v make steady with a ballast
- Their combined weight, coupled with the shifting of water in the vessel's ballast tanks, was meant to tip the ship in hopes of freeing it.
- A pair of landlubbers--overseen by sailors--had their hands on the controls that guide the submarine and empty its ballast tanks during the rapid ascent.
- A chance discovery sends a fledgling ballast-water-treatment firm on a beauty detour--skin care.