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jackscrew

[jak-skroo] /ˈdʒækˌskru/
noun
1.
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
1760-1770
1760-70; jack1 + screw
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for jack-screw

jackscrew

/ˈdʒækˌskruː/
noun
1.
another name for screw jack
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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17
20
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