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Definition of onager

onager

/ˈɑːnədʒər/
on · a · ger

Plural:onagers
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onager Lexical Profile

onager Game Scores & Validity

• noun

1

A wild ass (Equus hemionus) native to the arid and semi-arid regions of southwestern Asia, characterized by a pale sandy coat and a distinct dark dorsal stripe.

Example

"Conservationists in Iran are working to protect the endangered Persian onager from habitat loss and poaching."


2

An ancient and medieval Roman torsion siege engine that functioned like a catapult, utilizing a single throwing arm to hurl heavy stones or incendiary projectiles.

Example

"During the siege, Roman engineers constructed a massive onager to hurl heavy stones against the fortress walls."

Synonyms
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Word Origin & Etymology

From Latin 'onager', borrowed from Greek 'onagros' (wild ass), derived from 'onos' (ass) + 'agrios' (wild). The Roman siege engine was named after the animal because the violent kicking motion of its mechanical throwing arm resembled the kick of a wild ass.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Onager. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/onager
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