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Definition of derrick:

  1. A mast, spar, or tall frame, supported at the top by stays or guys, with suitable tackle for hoisting heavy weights, as stones in building.
  2. The pyramidal structure or tower over a deep drill hole, such as that of an oil well.


foundry, cooling tower, jib, hoist, gantry, boatyard, gasometer, blast furnace, factory, gasholder, skid, crane, block and tackle, brickworks, sling, jack, pulley, cannery.

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