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2017 Word of the Year

screw jack

noun
1.
Origin of screw jack
1710-1720
First recorded in 1710-20
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for screw jack

screw jack

noun
1.
a lifting device utilizing the mechanical advantage of a screw thread, the effort being applied through a bevel drive Also called jackscrew, 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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Word Value for screw

10
11
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