archimedes-screw

Archimedes' screw

noun
a device consisting essentially of a spiral passage within an inclined cylinder for raising water to a height when rotated.
Also, Archimedean screw.
Also called water snail.


Origin:
1860–65

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
Archimedes' screw or Archimedean screw (ˌɑːkɪˈmiːdɪən, -mɪˈdiːən)
 
n
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
 
Archimedean screw or Archimedean screw
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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