Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of derrick is as below...

Crane :: Crane (n.) A machine for raising and lowering heavy weights, and, while holding them suspended, transporting them through a limited lateral distance. In one form it consists of a projecting arm or jib of timber or iron, a rotating post or base, and the necessary tackle, windlass, etc.; -- so called from a fancied similarity between its arm and the neck of a crane See Illust. of Derrick..

Guy :: Guy (n.) A rope, chain, or rod attached to anything to steady it; as: a rope to steady or guide an object which is being hoisted or lowered; a rope which holds in place the end of a boom, spar, or yard in a ship; a chain or wire rope connecting a suspension bridge with the land on either side to prevent lateral swaying; a rod or rope attached to the top of a structure, as of a derrick, and extending obliquely to the ground, where it is fastened..

Boom :: Boom (n.) A long spar or beam, projecting from the mast of a derrick, from the outer end of which the body to be lifted is suspended..

Crab :: Crab (a.) A movable winch or windlass with powerful gearing, used with derricks, etc..

Derrick :: Derrick (n.) 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..

Mast :: Mast (n.) The vertical post of a derrick or crane.

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