
BALLAST Definition & Meaning - Merriam-Webster
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 submarine).
What Is a Ballast in a Light Fixture? Understanding Ballast Types and ...
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 applications.
Ballast - Wikipedia
Ballast is dense material used as a weight to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability.
BALLAST | English meaning - Cambridge Dictionary
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.
National Ballast Information Clearinghouse
Aug 12, 2025 · NBIC was established in 1997 at the direction of the National Invasive Species Act of 1996 (NISA). Ballast water data are available for download from our online database.
BALLAST Definition & Meaning | Dictionary.com
BALLAST definition: any heavy material carried temporarily or permanently in a vessel to provide desired draft and stability. See examples of ballast used in a sentence.
111. What Exactly Is a Ballast and Why Does It Matter?
Aug 26, 2024 · Find out what a ballast is and why it's important in lighting. This guide explains the types of ballasts, their functions, and how they impact energy efficiency.
ballast - WordReference.com Dictionary of English
Also called ballast resistor. a device, often a resistor, that maintains the current in a circuit at a constant value by varying its resistance in order to counteract changes in voltage.
Understanding Ballast: Types, Functions, and Applications
Ballast refers to material that is used to provide stability to a system, counteracting forces that may create instability. It serves as a foundational component, ensuring that structures do not sway or tip …
BALLAST definition and meaning | Collins English Dictionary
Ballast is any substance that is used in ships or hot-air balloons to make them heavier and more stable. Ballast usually consists of water, sand, or iron.