Definitions for onagerˈɒn ə dʒər; -ˌgraɪ
Random House Webster's College Dictionary
on•a•gerˈɒn ə dʒər; -ˌgraɪ(n.)(pl.)-gers; -gri
a wild ass, Equus hemionus, of SW Asia.
a military catapult used in ancient and medieval times for throwing stones.
Origin of onager:
1300–50; ME < LL: machine for throwing projectiles, L wild ass < Gk ónagros (in both senses), alter. of ónos ágrios ass of the fields, wild ass (see acre )
catapult, arbalest, arbalist, ballista, bricole, mangonel, onager, trebuchet, trebucket(noun)
an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles
onager, Equus hemionus(noun)
Asiatic wild ass
A wild ass, Equus hemionus, especially the koulan.
A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery.
Origin: From onager, onager, from onager, from Hellenistic ὄναγρος, from ὄνος + ἄγριος.