• synonyms

screw jack

  1. jackscrew.
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Origin of screw jack

First recorded in 1710–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for screw jack

Historical Examples

  • In the case of the screw-jack, it may be used to raise a heavy weight.

    The Library of Work and Play: Mechanics, Indoors and Out

    Fred T. Hodgson

  • The screw-jack was powerless to destroy the work of Chaucers time.

    Haunted London

    Walter Thornbury

  • One end of the log was then lifted by a screw-jack until level with the saw-bench.

    Redskin and Cow-Boy

    G. A. (George Alfred) Henty

British Dictionary definitions for screw jack

screw jack

  1. a lifting device utilizing the mechanical advantage of a screw thread, the effort being applied through a bevel driveAlso called: jackscrew, jack
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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