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Ballast
01
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a heavy substance placed in a ship's hull or an airship's tanks to lower its center of gravity and counteract unwanted tilting, rolling, or drifting
āĻāĻĻāĻžāĻšāĻ°āĻŖ
To climb above the mountain pass, the dirigible pilot jettisoned ballast sandbags.
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02
an electrical device used to start and regulate the current in fluorescent or discharge lamps
āĻāĻĻāĻžāĻšāĻ°āĻŖ
A new electronic ballast made the lamp more energy-efficient.
03
something that provides mental, emotional, or moral stability
āĻāĻĻāĻžāĻšāĻ°āĻŖ
Friendship can be a ballast against the stresses of modern life.
04
crushed stone laid to form a stable foundation for roads or railway tracks
āĻāĻĻāĻžāĻšāĻ°āĻŖ
The track ballast helps drain water and keep rails properly aligned.
to ballast
01
to make something stable or balanced by adding or using ballast, which is a heavy material used to provide stability
āĻāĻĻāĻžāĻšāĻ°āĻŖ
Engineers ballast the bridge supports to keep them steady during construction.
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