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Glossary of Aerospace Terms
beginning with letter D
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decay Tweet Definition of decay Like Definition of decay on Facebook
noun 
  1. A deterioration of condition or plaque on ones teeth.
verb 
  1. To deteriorate, to get worse, to lose strength or health, to decline in quality.
  2. To rot, To go bad.
     
discoverer Tweet Definition of discoverer Like Definition of discoverer on Facebook
noun 
  1. one who discovers; the person who discovered something
     
discovery Tweet Definition of discovery Like Definition of discovery on Facebook
noun (discoveries, -)
  1. Something discovered.
This latest should eventually lead to much better treatments for disease.
  1. (uncountable) The discovering of new things.
The purpose of the voyage was .
  1. (context, law, uncountable) A pre-trial phase in which evidence is gathered.
The prosecution moved to supress certain items turned up during .
  1. (context, law, uncountable) Materials revealed to the opposing party during the pre-trial phase in which evidence is gathered.
The defense argued that the plaintiff's was inadequate.
     
dock Tweet Definition of dock Like Definition of dock on Facebook
noun 
  1. A body of water between two piers or wharves.
  2. (of a ship) Being in the harbour area.
  3. The action of joining two items together.
  4. The action of reducing wages.
  5. A burdock plant, or the leaves of that plant.
  6. (slang, also doc) A documentary or docudrama.
  7. Part of a courtroom where accused sits.
  8. a section of a hotel or restaurant, as in coffee dock
  9. A male given name.
  10. (Scots slang, also doc) the buttocks or anus.
verb 
  1. To land at a harbour.
  2. To join two moving items.
  3. To reduce wages; to deduct.
  4. To cut off a section of an animal's tail.
     
drift Tweet Definition of drift Like Definition of drift on Facebook
noun 
  1. The act or motion of drifting; the force which impels or drives; an overpowering influence or impulse.
  2. A place, also known as a ford, along a river where the water is shallow enough to permit oxen or sheep to be driven to the opposite side.
  3. Course or direction along which anything is driven; setting.
  4. The tendency of an act, argument, course of conduct, or the like; object aimed at or intended; intention; hence, also, import or meaning of a sentence or discourse; aim.
  5. That which is driven, forced, or urged along
  6. Anything driven at random.
  7. A mass of matter which has been driven or forced onward together in a body, or thrown together in a heap, etc., esp. by wind or water; as, a drift of snow, of ice, of sand, and the like.
  8. A drove or flock, as of cattle, sheep, birds.
  9. The horizontal thrust or pressure of an arch or vault upon the abutments.
  10. A collection of loose earth and rocks, or boulders, which have been distributed over large portions of the earth's surface, especially in latitudes north of forty degrees, by the agency of ice.
  11. In South Africa, a ford in a river.
  12. A slightly tapered tool of steel for enlarging or shaping a hole in metal, by being forced or driven into or through it; a broach.
  13. A tool used in driving down compactly the composition contained in a rocket, or like firework.
  14. A deviation from the line of fire, peculiar to oblong projectiles.
  15. A passage driven or cut between shaft and shaft; a driftway; a small subterranean gallery; an adit or tunnel.
  16. The distance through which a current flows in a given time.
  17. The angle which the line of a ship's motion makes with the meridian, in drifting.
  18. The distance to which a vessel is carried off from her desired course by the wind, currents, or other causes.
  19. The place in a deep-waisted vessel where the sheer is raised and the rail is cut off, and usually terminated with a scroll, or driftpiece.
  20. The distance between the two blocks of a tackle.
  21. The difference between the size of a bolt and the hole into which it is driven, or between the circumference of a hoop and that of the mast on which it is to be driven.
  22. A sideways movement of the ball through the air, when bowled by a spin bowler.
  23. Driftwood, driftwood included in flotsam washed up onto the beach.
  24. Driftless Area, Drift (see Wikipedia). The material left behind by the retreat of continenal glaciers. It buries former river valleys and creates young river valleys. The Diftless Area, a geographical area of North America, was unglaciated for the past 510 million years. Mass noun.
verb 
  1. To move slowly, pushed by currents of water, air, etc
The boat drifted away from the shore.
The balloon was drifting in the breeze.
  1. To move haphazardly without any destination.
''He drifted from town to town, never settling down.
  1. To deviate gently from the intended direction of travel.
''This car tends to drift left at high speeds
     

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