ballast in Dutch
ballast in Dutch
ballast
(nautical) Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability.
ballastbed
Coarse gravel or similar material laid to form a bed for roads or railroads, or in making concrete; track ballast.
bedding
Coarse gravel or similar material laid to form a bed for roads or railroads, or in making concrete; track ballast.