Archimedes' screw

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Ar·chi·me·des' screw

 (är′kə-mē′dēz)
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Archimedes' screw

(ˌɑːkɪˈmiːdɪən; -mɪˈdiːən) or

Archimedean screw

n
(Mechanical Engineering) an ancient type of water-lifting device making use of a spiral passage in an inclined cylinder. The water is raised when the spiral is rotated
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Ar′chime′des' screw′


n.
a device consisting essentially of a spiral passage within an inclined cylinder for raising water to a height when rotated.
[1860–65]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.