derrick

Noun
  1. A framework erected over an oil well to allow drill tubes to be raised and lowered (synset 103183204)
    is a type of: frame, framework - a structure supporting or containing something
  2. A simple crane having lifting tackle slung from a boom (synset 103183096)
    is a type of: crane - lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis

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