Scrabble Dictionary
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| Scrabble US | (9 Points) | |
| Scrabble UK | (9 Points) | |
| Words With Friends | (12 Points) |
Ballast
ˈbaləst
Ballast definitions
noun
ballast
ballasts
- heavy material, such as gravel, sand, or iron, placed in the bilge of a ship to ensure its stability
"the hull had insufficient ballast"
- a heavy substance carried in an airship or on a hot-air balloon to stabilize it and jettisoned when greater altitude is required
"a forty kilo sandbag was used as ballast"
- something providing stability or substance
"the film is an entertaining comedy with some serious ideas thrown in for ballast"
- gravel or coarse stone used to form the bed of a railway track or the substratum of a road
"a thick layer of railway ballast"
- a mixture of coarse and fine aggregate for making concrete
- a passive component used in an electric circuit to moderate changes in current
"ballasts are permanently wired into existing fixtures"
verb
ballast
ballasted
ballasting
ballasts
- give stability to (a ship) by putting a heavy substance in its bilge
"the vessel has been ballasted to give the necessary floating stability"
- form (the bed of a railway line or the substratum of a road) with gravel or coarse stone
"the track was laid with rails and ballasted with earth"