单词 | Archimedean |
释义 | Archimedean, a.|ɑːkɪˈmiːdɪən, -miːˈdiːən| Also -ian. [f. L. Archimēdē-us (f. next) + -an.] Of, pertaining to, or invented by Archimedes. Archimedean drill (see quot. 1940); Archimedean Screw or Archimedes' Screw: an instrument for raising water, formed by winding a tube into the form of a screw around a long cylinder.
1813G. Edwards Meas. True Policy 29 An archimedean lever and fulcrum, able to sway..the World. 1829Nat. Philos. I. ii. 8 (U.K.S.) The principle of the Archimedian Screw is occasionally adopted in the wheel-form. 1889in Cent. Dict. 1914Lancet 4 July 35/2, I have found the all-metal archimedean drill..much more satisfactory than other mechanical drills for making the screw-holes in plating fractures. 1940Chambers's Techn. Dict. 48/2 Archimedean drill, a drill in which to-and-fro axial movement of a nut on a helix causes an alternating rotary motion of the bit. |

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