- ballista
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/beuh lis"teuh/, n., pl. ballistae /-tee/.an ancient military engine for throwing stones or other missiles.[1590-1600; < L, prob. < Gk *ballistás, dial. var. of *ballistés, equiv. to báll(ein) to throw + -istes -IST]
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Ancient missile launcher designed to hurl long arrows or heavy balls.The Greek version was basically a huge crossbow fastened to a mount. The Roman ballista was powered by torsion derived from two thick skeins of twisted cords through which were thrust two separate arms joined at their ends by the cord that propelled the missile. The largest could accurately hurl 60-lb (27-kg) weights up to about 500 yards (450 m).* * *
▪ ancient missile launcherancient missile launcher designed to hurl javelins or heavy balls. Ballistas were powered by torsion derived from two thick skeins of twisted cords through which were thrust two separate arms joined at their ends by the cord that propelled the missile. The much smaller carroballistae were of similar design but were sufficiently mobile that Roman legions took them into the field on carts. The largest ballistas were quite accurate in hurling 60-pound weights up to about 500 yards. Compare catapult.* * *
Universalium. 2010.