Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for ballast from the 1913 edition of Webster's Revised Unabridged Dictionary. Define ballast using one of the most comprehensive free online dictionaries on the web.

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Part of Speech: Noun
Results: 8
2. Any heavy matter put into the car of a balloon to give it steadiness.
4. The larger solids, as broken stone or gravel, used in making concrete.
5. Fig.: That which gives, or helps to maintain, uprightness, steadiness, and security.
Part of Speech: verb transitive
1. To steady, as a vessel, by putting heavy substances in the hold.
3. To keep steady; to steady, morally.
Examples of usage:
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