vessel in ballast
1Ballast — Bal last (b[a^]l last), n. [D. ballast; akin to Dan. baglast, ballast, OSw. barlast, Sw. ballast. The first part is perh. the same word as E. bare, adj.; the second is last a burden, and hence the meaning a bare, or mere, load. See {Bare}, a.,… …
2Ballast engine — Ballast Bal last (b[a^]l last), n. [D. ballast; akin to Dan. baglast, ballast, OSw. barlast, Sw. ballast. The first part is perh. the same word as E. bare, adj.; the second is last a burden, and hence the meaning a bare, or mere, load. See {Bare} …
3Ballast — Bal last, v. t. [imp. & p. p. {Ballasted}; p. pr. & vb. n. {Ballasting}.] 1. To steady, as a vessel, by putting heavy substances in the hold. [1913 Webster] 2. To fill in, as the bed of a railroad, with gravel, stone, etc., in order to make it… …
4Ballast tank — A ballast tank is a compartment within a boat or ship, that holds water. A vessel may have a single ballast tank near its center or multiple ballast tanks typically on either side. A large vessel typically will have several ballast tanks… …
5Ballast water discharge and the environment — Cruise ships, large tankers, and bulk cargo carriers use a tremendous amount of ballast water, which is often taken on in the coastal waters in one region after ships discharge wastewater or unload cargo, and discharged at the next port of call,… …
6Ballast tractor — A ballast tractor is a heavy haulage road vehicle designed to pull or push heavy or exceptional loads. Unlike the tractor unit from an articulated trailer, the ballast tractor is designed or adapted to pull or push loads from a drawbar. By… …
7ballast — ballaster, n. ballastic /beuh las tik/, adj. /bal euhst/, n. 1. Naut. any heavy material carried temporarily or permanently in a vessel to provide desired draft and stability. 2. Aeron. something heavy, as bags of sand, placed in the car of a… …
8ballast line — noun : the water line of a ship in ballast * * * Naut. the level to which a vessel is immersed when in ballast …
9ballast line — Naut. the level to which a vessel is immersed when in ballast. * * * …
10ballast tank — noun One of several external or internal tanks fitted in submarines; when filled with seawater they allow the boat to submerge; when emptied using compressed air buoyancy is restored and the vessel rises towards the surface. Auxiliary ballast… …
