| 单词 |
polyspast |
| 释义 |
† ˈpolyspast Obs. rare—0. [ad. Gr. πολύσπαστον a compound pulley, neut. of πολύσπαστος drawn by many cords.] (See quots.)
[1693tr. Blancard's Phys. Dict. (ed. 2), Polyspaston, a Machine for reducing Joynts. 1706Phillips, Polyspaston.] 1730–6Bailey (folio), Polyspast, a windlass having many pullies or truckles. Polyspast (in Surgery), a machine for the reduction of dislocated joints. |

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