See Also: ballast(medicine)
ballast(dictionary)
ballast(dictionary)
Ballast - Motor Sports(gambling)

ballast (oh)



[Date: 1500-1600; Origin: Probably from Low German]
heavy material that is carried by a ship to make it more steady in the water
material such as sand that is carried in a balloon so that it can be thrown out to make it rise
a layer of broken stones that a road or railway line is built on