Archimedean /(är`kĭmē̇*dē"an)/

Ar·chi·me·de·an

Archimedean

a.
  1. Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes' screw; as, Archimedean drill, propeller, etc.

Phrases & Compounds
Archimedean screw
an instrument, said to have been invented by Archimedes, for raising water, formed by winding a flexible tube round a cylinder in the form of a screw. When the screw is placed in an inclined position, and the lower end immersed in water, by causing the screw to revolve, the water is raised to the upper end.