Ballast

Definition of Ballast

Bal´last   Pronunciation: băl´last
n.1.(Naut.) Any heavy substance, as stone, iron, etc., put into the hold to sink a vessel in the water to such a depth as to prevent capsizing.
2.Any heavy matter put into the car of a balloon to give it steadiness.
3.Gravel, broken stone, etc., laid in the bed of a railroad to make it firm and solid.
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.
It [piety] is the right ballast of prosperity.
- Barrow.
Ballast engine
a steam engine used in excavating and for digging and raising stones and gravel for ballast.
Ship in ballast
a ship carrying only ballast.
v. t.1.To steady, as a vessel, by putting heavy substances in the hold.
[imp. & p. p. Ballasted; p. pr. & vb. n. Ballasting.]
2.To fill in, as the bed of a railroad, with gravel, stone, etc., in order to make it firm and solid.
3.To keep steady; to steady, morally.
'T is charity must ballast the heart.
- Hammond.

Related Words

balance, break bulk, break out ballast, clear for action, clear the decks, consideration, counterbalance, counterpoise, counterweight, equipoise, equivalent, firm, firm up, freeze, give-and-take, hold, immobilize, keep, lead, makeweight, nail down, offset, pin down, poise, quid pro quo, retain, sandbag, setoff, shift ballast, shoot ballast, something of value, stabilitate, stabilize, steady, stick, tit for tat, transfix, trim, trim ship, trim up, weigh down, weight, weight down, wing out ballast
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