Archimedean

[Sarah]

Of or pertaining to Archimedes, a celebrated Greek philosopher;constructed on the principle of Archimedes' screw; as, Archimedeandrill, propeller, etc. Archimedean screw, or Archimedes' screw, aninstrument, said to have been invented by Archimedes, for raisingwater, formed by winding a flexible tube round a cylinder in the formof a screw. When the screw is placed in an inclined position, and thelower end immersed in water, by causing the screw to revolve, thewater is raised to the upper end. Francis.