adjective Nautical.
(of a vessel) having two screw propellers, which usually revolve in opposite directions.

1860–65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To twin-screw
World English Dictionary
(of a vessel) having two propellers

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
The composite was dried, twin-screw extruded, and injection molded to make thin parts for tensile testing.
In the past few years the twin-screw manufacturers have also introduced subsea
  versions of these pumps.
The new process uses a standard industrial food-processing device called a
  twin-screw extruder.
The grains were produced using a twin-screw extruder equipped with a special
  cutter and a rice shaping die.
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