/ ˈderɪk; NAmE / noun
1.
a tall machine used for moving or lifting heavy weights, especially on a ship; a type of crane
2.
a tall structure over an oil well for holding the drill (= the machine that makes the hole in the ground for getting the oil out)
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WORD ORIGIN
early 17th cent. (denoting a hangman, also the gallows): from Derrick , the surname of a London hangman.