Ship in ballast

Ship in ballast
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}, a., and {Last} load.] 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. [1913 Webster]

2. Any heavy matter put into the car of a balloon to give it steadiness. [1913 Webster]

3. Gravel, broken stone, etc., laid in the bed of a railroad to make it firm and solid. [1913 Webster]

4. The larger solids, as broken stone or gravel, used in making concrete. [1913 Webster]

5. Fig.: That which gives, or helps to maintain, uprightness, steadiness, and security. [1913 Webster]

It [piety] is the right ballast of prosperity. --Barrow. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • 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}, a.,… …   The Collaborative International Dictionary of English

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  • ballast — 1. noun /ˈbæl.əst/ a) Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability. b) Anything that steadies …   Wiktionary

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  • ballast — [bal′əst] n. [LowG < MDu < bal, bad, useless (akin to OE bealu,BALE2) + last, a load] 1. anything heavy carried in a ship, aircraft, or vehicle to give stability or in a balloon or airship to help control altitude 2. anything giving… …   English World dictionary

  • ballast — (n.) heavy material used to steady a ship, 1520s, from M.E. bar bare (see BARE (Cf. bare); in this case mere ) + last a load, burden, or borrowed from identical terms in North Sea Germanic and Scandinavian (Cf. O.Dan. barlast, 14c.). Mere because …   Etymology dictionary

  • Ship motions — are defined by the six degrees of freedom that a ship or boat can experience. Translation Heave : is the linear vertical (up/down) motionSway : is the linear lateral (side to side) motionSurge : is the linear longitudinal (front/back) motion… …   Wikipedia

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