Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun onager

2 senses of onager

Sense 1
catapult, arbalest, arbalist, ballista, bricole, mangonel, onager, trebuchet, trebucket -- (an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles)
       => engine -- (an instrument or machine that is used in warfare, such as a battering ram, catapult, artillery piece, etc.; "medieval engines of war")

Sense 2
onager, Equus hemionus -- (Asiatic wild ass)
       => wild ass -- (any of several equine mammals of Asia and northeast Africa)