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jackscrew

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.01 sec.
jackscrew: see screw screw, simple machine consisting essentially of a solid cylinder, usually of metal, around which an inclined plane winds spirally, either clockwise or counterclockwise.
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jackscrew [′jak‚skrü]
(mechanical engineering)
A jack operated by a screw mechanism. Also known as screw jack.
The screw of such a jack.


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The airline found one jackscrew without enough lubrication on Wednesday.
The external four-link connector is based on the same MicroGiga connector used by 4x Infiniband, but uses jackscrews instead of the quick-release latches that Infiniband cables use.
Federal investigators determined that a lack of grease on the jet's jackscrew - a tail component that helps move the plane's stabilizer and sets the angle of flight - likely caused the crash.
 
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