Archimedes' screw
noun
Ar·chi·me·des' screw
| \ ˌär-kə-ˈmē-dēz-
\
\
Definition of Archimedes' screw
: a device made of a tube bent spirally around an axis or of a broad-threaded screw encased by a cylinder and used to raise water
Illustration of Archimedes' screw
Archimedes' screw
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