definitions
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jackscrew

[ jak-skroo ]
/ ˈdʒækˌskru /
|

noun

a jack for lifting, consisting of a screw steadied by a threaded support and carrying a plate or other part bearing the load.

Nearby words

jacklighter, jacklin, jackpot, jackrabbit, jacks, jackscrew, jackshaft, jacksie, jacksmelt, jacksnipe, jackson

Origin of jackscrew

First recorded in 1760–70; jack1 + screw
Also called screw jack.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for jackscrew

  • The Indian gazed a moment, then rose quickly, and put on the jackscrew.

    Rolf In The Woods|Ernest Thompson Seton

  • The axle was slightly bent, and a blacksmith had to bring clamps and a jackscrew before the new wheel could be adjusted.

    The Silent Barrier|Louis Tracy

British Dictionary definitions for jackscrew

jackscrew

/ (ˈdʒækˌskruː) /

noun

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