0 heavy matter such as sand, stone, or water that is used at the bottom of a ship or a hot-air balloon to make it heavier, or the small stones on which railways and roads are made: --
The team is struggling because of a shortage of the ballast that senior players provide.
He needed his platoon mates around him. They were his ballast.
A ship sailing with an empty hold will have filled its ballast tanks at its source port.
The weed may have been accidentally imported in soil used as ship ballast.
This constraint specifies that the mass of the yacht, before adding any ballast, must be less than or equal to the mass of the water that it displaces.
Ballast water is stored in the fuel oil tank.
No evidence of subfloor ballast was encountered.
The north masonry facade of the causeway, capped by a parapet, was significantly more formal than the southern edge of the causeway, where the ballast feathered out.
The way the authors deal with difficult material is not to break it up so that readers can make sense of it, but to weigh it down with academic ballast.
A device called a ballast performs this function.
However, since there was no wharf, jetty or landing beach, ballast from wrecked vessels would most likely have been dumped in seawater.
She also took in a few tons of graphite as ballast after having unloaded her main cargo.
