Onager
Pronunciation : On"a*ger, n.; pl. L. Onagri
Part of Speech : E.
Etymology : [L. onager, onagrus, Gr.
Definition : 1. (Rom.Antiq.)
Defn: A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery. Fairholt.
2. (Zo?l.)
Defn: A wild ass, especially the koulan.
Onagers.
Source : Webster's Unabridged Dictionary, 1913