Webster's 1913 Dictionary
ARCHIMEDEAN
Ar `chi *me *de "an, a. Etym: [L. Archimedeus.]
Defn: Of or pertaining to Archimedes, a celebrated Greek philosopher; constructed on the principle of Archimedes' screw; as, Archimedean drill, propeller, etc. Archimedean screw, or Archimedes' 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. Francis.
New American Oxford Dictionary
Archimedean screw
Ar chi me de an screw |ˌärkəˈmēdēən ˌɑrkəˈmidiən skru | ▶noun a device invented by Archimedes for raising water by means of a spiral within a tube.
Oxford Dictionary
Archimedean screw
Archimedean screw |ˌɑːkɪˈmiːdɪən | ▶noun a device invented by Archimedes for raising water by means of a helix rotating within a tube.
The Wordsmith Dictionary