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Word: ballast
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Meaning:
Noun:
- Coarse gravel or similar material laid to form a bed for roads or railroads.
- construction A material, such as aggregate or precast concrete pavers, which employs its mass and the force of gravity to hold single-ply roof membranes in place.
- electronics device used for stabilizing current in an electric circuit (e.g.in a tube lamp supply circuit)
- figurative Anything that steadies emotion or the mind.
- nautical Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability.
Source: Wiktionary
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Verb:
- To lay ballast on the bed of a railroad track.
- To stabilize or load a ship with ballast.
Source: Wiktionary
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