The meaning of BALLAST is a heavy substance (such as rocks or water) placed in such a way as to improve stability and control (as of the draft of a ship or the buoyancy of a balloon or …

An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit.

Aug 7, 2017 · Learn what a ballast is in a light fixture, how it works, the different types available, and their importance in lighting systems. Discover insights for both residential and commercial …

BALLAST definition: 1. heavy matter such as sand, stone, or water that is used at the bottom of a ship or a hot-air…. Learn more.

Definition of ballast noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1. To stabilize or provide with ballast. 2. To fill (a railroad bed) with or as if with ballast.

In general, ballast means something that provides stability or weight.In a specific sense, it’s most commonly used to refer to heavy material used to stabilize a vessel, such as a ship, especially …