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screw jack

 - 4 dictionary results

jack⋅screw

[jak-skroo]
–noun
a jack for lifting consisting of a screw steadied by a threaded support and carrying a plate or other part bearing the load.
Also called screw jack.


Origin:
1760–70; jack 1 + screw
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To screw jack
jack·screw   (jāk'skrōō')   
n.  A jack operated by a screw. Also called screw jack.
screw jack  
n.  See jackscrew.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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