• WordNet 3.6
    • v ballast make steady with a ballast
    • n ballast any heavy material used to stabilize a ship or airship
    • n ballast an electrical device for starting and regulating fluorescent and discharge lamps
    • n ballast a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)
    • n ballast an attribute that tends to give stability in character and morals; something that steadies the mind or feelings
    • n ballast coarse gravel laid to form a bed for streets and railroads
    • ***
Webster's Revised Unabridged Dictionary
    • Ballast Any heavy matter put into the car of a balloon to give it steadiness.
    • Ballast (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.
    • Ballast Fig.: That which gives, or helps to maintain, uprightness, steadiness, and security. "It [piety] is the right ballast of prosperity."
    • Ballast Gravel, broken stone, etc., laid in the bed of a railroad to make it firm and solid.
    • Ballast The larger solids, as broken stone or gravel, used in making concrete.
    • Ballast To fill in, as the bed of a railroad, with gravel, stone, etc., in order to make it firm and solid.
    • Ballast To keep steady; to steady, morally. "'T is charity must ballast the heart."
    • Ballast To steady, as a vessel, by putting heavy substances in the hold.
    • ***
Century Dictionary and Cyclopedia
    • n ballast Weight carried by a ship or boat for the purpose of insuring the proper stability, both to avoid risk of capsizing and to secure the greatest effectiveness of the propelling power. A usual modern form of ballast is water, which is pumped in or out of compartments arranged to receive it; lead is also much used, especially for craft of moderate size, and is often run into a space left for it between the plates of the keel, or cast into plates of appropriate form and bolted to the exterior of the keel. Gravel, stones, pig-iron, and other weighty materials are in common use as ballast, in cases where the requisite weight cannot be found in the regular cargo itself.
    • n ballast Bags of sand placed in the car of a balloon to steady it and to enable the aëronaut to lighten the balloon, when necessary to effect a rise, by throwing part of the sand out.
    • n ballast Gravel, broken stones, slag, or similar material (usually called road-metal), placed between the sleepers or ties of a railroad, to prevent them from shifting, and generally to give solidity to the road. The name is also given to the stones, burnt clay, etc., used as a foundation in making new roads, laying concrete floors, etc.
    • n ballast Figuratively, that which gives stability or steadiness, mental, moral, or political.
    • ballast To place ballast in or on; furnish with ballast: as, to ballast a ship; to ballast a balloon; to ballast the bed of a railroad. See the noun.
    • ballast Figuratively: To give steadiness to; keep steady.
    • ballast To serve as a counterpoise to; keep down by counteraction.
    • ballast To load; freight.
    • ballast To load or weigh down.
    • ballast Ballasted.
    • n ballast The rough masonry of the interior of a wall, or that laid upon the vault; masonry used where weight and solidity are needed. Compare filling, 7, and back-filling.
    • ***
Chambers's Twentieth Century Dictionary
    • n Ballast bal′last heavy matter employed to give a ship sufficient immersion in the water, to insure her safe sailing with spread canvas, when her cargo and equipment are too light: that which renders anything steady
    • v.t Ballast to load with ballast: to make or keep steady:
    • v.t Ballast (Shak.) load
    • ***


  • Minna Antrim
    “Enthusiasms, like stimulants, are often affected by people with small mental ballast.”
  • Henry David Thoreau
    “Must be out-of-doors enough to get experience of wholesome reality, as a ballast to thought and sentiment. Health requires this relaxation, this aimless life.”
  • William Penn
    “Less judgment than wit is more sail than ballast.”


Webster's Revised Unabridged Dictionary
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


In literature:

Behind the observer are the tanks for fuel oil and 300 gallons of water ballast.
"Kelly Miller's History of the World War for Human Rights" by Kelly Miller
In fact the demand for ballast is often greater than the supply.
"Homeburg Memories" by George Helgesen Fitch
But just as he was about to blow the ballast tanks, Mel Flagler sang out a warning from the sonarscope.
"Tom Swift and the Electronic Hydrolung" by Victor Appleton
Desperate efforts were made to collect ballast for the supply ships.
"On the Spanish Main" by John Masefield
She was actually ballasted with brass guns!
"Chambers's Edinburgh Journal, No. 434" by Various
The road bed is perfectly firm, and the track is well ballasted.
"Russia" by Various
Obtain their name from being much used as ballast for ships.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
Cannon balls and cartridges were thrown in bottom as ballast.
"Vikings of the Pacific" by Agnes C. Laut
There was too much ballast, as it were, for so little sail.
"Atlantic Monthly, Volume 20, No. 118, August, 1887" by Various
It is like ballast to a ship.
"Captains of Industry" by James Parton

In poetry:

To be paying bills of laughter
And chaffy gossip in kind
With work thrown in to ballast
The fantasy-soaring mind.
"On An Apple-Ripe September Morning" by Patrick Kavanagh
There! One at a time!—Take care, love; it
is heavy.—
Put them right in the middle, of the boat:
Gold makes good ballast.
"Within and Without: Part II: A Dramatic Poem" by George MacDonald
Well, we just had finish'd with our repairs,
And were sorting the ballast about the chairs,
When the afternoon goods, about half-an-hour late,
Came round upon us as steady as fate.
"Old Wylie's Stone" by Alexander Anderson
In the Morning Maynard weighed and sent his boat to sound,
Which, coming near the pirate, unfortunately ran aground;
But Maynard lightened his vessel of the ballast and water,
Whilst from the pirates' ship small shot loudly did clatter.
"Captain Teach alias Black Beard" by William Topaz McGonagall

In news:

Students and teachers filed outside of the Lamar County Elementary School after smoke was detected in the building from a burnt light ballast .
Industrial lighting fixture offers optimal performance with T8 lamps and high-light-output ballasts.
During a storm, synthetic non-woven mats placed between the insulation and the stone ballast prevent grit from working down into the insulation boards and interfering with drainage.
Ballast water treatment system testing facility earns US Coast Guard approval.
Pacific Basin Takes on Weighty Ballast.
Brought in ballast, aggressive seaweed spreads along East Coast.
Ballast Point, Barmy Apricot Honey Ale .
Take the ballast water issue, for example.
Green Flash, Stone and Ballast Point recognized in the international competition.
The common mode choke is also suitable for CCFL lighting, filtering on device with unstable ground, power line input and output filters, power electronics, electronic ballasts, white goods and power tools.
The big problem is if you start getting running water on to the railway lines, coming off the fields, it washes the ballast away.
This unit runs at a much lower temperature than non- digital HID kits, and it also puts out a stable electrical output to the ballasts, which result in perfectly matched bulb brightness on each side.
Many states require lamp recycling and proper disposal of ballasts, batteries and electronic waste by law.
Brought in ballast, aggressive seaweed spreads along East Coast .
Amiad signs supply agreement with Calgon Carbon Corp. For production of ballast water treatment systems.

In science:

From this, three key issues can be addressed a) the kinematics of the vertebrae, b) the skin, which, even if solutions were proposed, many uncertainties remain, and c) the buoyancy of the prototype, which will be extended in the future and will lead to systems or ballast bladder.
The eel-like robot
Typical photosolar modules are mounted on racks, these are often supplied with precast concrete ballasted footings.
Storing unsteady energy, like photovoltaically generated electric energy, as potential energy
One possibility to realize the approach is thus for example to replace conventional module racks by mechanical racks in which the solarmodule or a group of solar module, eventually together with some ballast can be lifted up and downward.
Storing unsteady energy, like photovoltaically generated electric energy, as potential energy
If one elevates 100kg concrete ballasted modules 1m above ground (via their generated electricity) one stores the potential energy of about 1kJ , which is thus roughly about 1 percent of the averaged produced energy of such a module per day in Hamburg.
Storing unsteady energy, like photovoltaically generated electric energy, as potential energy
In OPQ the state transformer after a quantum measurement is defined as an instrument, and this aims for the mathematical formalization of the so-called Pro jection Postulate (a to much debated topic in Quantum Physics, often carrying an ontological ballast).
State transformations after quantum fuzzy measurements