DICT.TW Dictionary Taiwan

 on·a·ger /ˈɑnɪʤɚ/
 野生驢之一種,投石器之一種

 On·a·ger n.; pl. L. Onagri E. Onagers
 1. Rom. Antiq. A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery.
 2. Zool. A wild ass of central Asia, especially the koulan (Equus hemionus syn. Equus hemippus syn. Equus onager, formely Asinus onager).
 ◄ ►

 onager
      n 1: medieval artillery used during sieges; a heavy war engine
           for hurling large stones and other missiles [syn: catapult,
            arbalest, arbalist, ballista, bricole, mangonel,
            trebuchet, trebucket]
      2: Asiatic wild ass [syn: Equus hemionus]
      [also: onagri (pl)]