Signification

• Noun

  1. Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability.
  2. Anything that steadies emotion or the mind.
  3. Coarse gravel or similar material laid to form a bed for roads or railroads, or in making concrete; track ballast.
  4. 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.
  5. device used for stabilizing current in an electric circuit (e.g. in a tube lamp supply circuit)
  6. That which gives, or helps to maintain, uprightness, steadiness, and security.

• Verb