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screw propeller

noun
1.
a rotary propelling device, as for a ship or airplane, consisting of a number of blades that radiate from a central hub and are so inclined to the plane of rotation as to tend to drive a helical path through the substance in which they rotate.
Origin
1830-1840
1830-40
Related forms
screw-propelled, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for screwpropelled

screw propeller

noun
1.
an early form of ship's propeller in which an Archimedes' screw is used to produce thrust by accelerating a flow of water
Derived Forms
screw-propelled, adjective
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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