Meaning of BALLAST in English

BALLAST

n. & v.

--n.

1. any heavy material placed in a ship or the car of a balloon etc. to secure stability.

2 coarse stone etc. used to form the bed of a railway track or road.

3 Electr. any device used to stabilize the current in a circuit.

4 anything that affords stability or permanence.

--v.tr.

1. provide with ballast.

2 afford stability or weight to.

Etymology: 16th c.: f. LG or Scand., of uncert. orig.

Oxford English vocab.      Оксфордский английский словарь.