Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A fast-running wild ass (Equus hemionus subsp. onager) of central Asia, having an erect mane and a broad black stripe along its back.
- n. An ancient and medieval stone-propelling siege engine.
Century Dictionary and Cyclopedia
- n. A wild ass, Equus hemippus or E. onager, inhabiting the steppes of central Asia. See dziggetai.
- n. A war-engine for throwing stones, used in Europe in the middle ages.
Wiktionary
- n. A wild ass, Equus hemionus, especially the koulan.
- n. A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery.
GNU Webster's 1913
- n. (Rom. Antiq.) A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery.
- n. (Zoöl.) A wild ass of central Asia, especially the
koulan (Equus hemionus syn. Equus hemippus syn. Equus onager, formely Asinus onager).
WordNet 3.0
- n. an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles
- n. Asiatic wild ass
Etymologies
- From Anglo-Norman onager, Old French onager ("wild ass; siege engine"), from Latin onager ("wild ass"), from Hellenistic Ancient Greek ὄναγρος ("wild ass"), from ὄνος ("ass") + ἄγριος ("wild"). (Wiktionary)
- Middle English, from Late Latin, from Latin, wild ass, from Greek onagros : onos, ass + agrios, wild. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The onager is a wild ass that brays 12 times to signal the spring equinox.”
“The wild ass is called onager because "ass" in Greek is onus and "wild" is agrion.”
“The Kulan, or onager (Equus hemionus onager), is an endangered subspecies of Asian wild ass which has been recently introduced in this ecoregion (Kapchagai preserve) from Turkmenistan, where the only remaining wild population lives in the Badghyz Reserve.”
“The critically endangered Asiatic cheetah (Acinonyx jubatus ssp. venaticus), the endangered onager (Equus hemionus ssp. onager), and the Persian ibex (Capra aegagrus – classified as vulnerable on the IUCN Red List) were once more common in this region but now are found only in small numbers.”
“Characteristic fauna includes onager, gazelles, cheetah, leopard, the desert fox, and many species of birds.”
“Within this ecoregion, the Shaumari Wildlife Reserve protects vegetation, Gazelle spp., and the re-introduced onager (Equus hemionus).”
“Today, only a few hundred individuals of the Persian wild ass subpsecies (E.h. onager) persist in Bahram-e-Goor in the Iranian portion of the hotspot, while another subspecies of wild ass, known as the kulan or Turkmenian wild ass (E.h. kulan, CR), survives only in a single population in and around the Badkhyz Nature Reserve in south Turkmenistan, just marginally outside the hotspot.”
“Kulan, or onager (Equus hemionus onager) is the subspecies of Asian wild ass currently found only in this ecoregion.”
“The great civilizations of Sumer and Eqypt knew only the onager or wild ass.”
“Equus hemionus onager, the Onager or Asian Ass, but it would have been a bit too confusing.”
Lists
These user-created lists contain the word ‘onager’.
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50 Ways to Leave Your Lover
walking, bicycle, bus, train, motorcycle, airplane, car, truck, segway, limousine, roller coaster, wheelbarrow and 130 more...
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phrontistery - o
from phrontistery.info
ozostomia, ozoniferous, oxytone, oxytocic, oxyphonia, oxymoron, oxygeusia, oxyblepsia, oxyacanthous, oxter, oxyacaesthesia, owling and 504 more...
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horses
everything horses
horse, bay, bloodhorse, bloodstock, bolter, broncho, bronco, brumby, bucker, buckjumper, cob, cocktail and 200 more...
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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My Little Phonies
Names for the next generation of My Little Ponies. Inspired by Star's list.
juggernaught, flamboyant, cuddly maggot, astrobleme, agroof, windburn, poshlost, crucifer, feedbag, dunderwhelp, nebelwerfer, bliss ninny and 453 more...
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Zoomorphic weapons
butterfly knife, butterfly bomb, swan primary, chicken-powered n..., bec de corbin, bec de faucon, deer horn knives, butterfly sword, tiger claws, chicken sickle, cat o' nine tails, mamba pistol and 7 more...
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-ager
Any word ending in -ager. And because I'm feeling generous tonight, I'll even let in words ending in -adger.
voyager, teenager, wager, pager, manager, dowager, badger, cadger, lager, rager, mumager, tanager and 14 more...
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Greek Fire
being items related to mediaeval warfare, arms and armaments.
caltrop, ballista, trebuchet, mangonel, petard, onager, petrary, hurlbat, francisca, crossbow, longbow, flail and 97 more...
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colleen's words
yellow, green, pie, blue, fur, people, incense, book, brown, avuncular, mountain, fog and 1316 more...
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Military Matters
words of mass (or minor) destruction
caltrop, stylet, chassepot, baldric, rewet, blunderbuss, musket, flintlock, howitzer, ordnance, casque, dragoon and 148 more...
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Awesome Words, Part 2: More Common
pilgrim, indubitably, incorrigible, bombastic, histrionics, depredation, perspicuity, discombobulate, peregrination, ambulatory, redux, fractious and 164 more...
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FTL
Words listed first by me that don't belong in any other list.
licit, precis, mnemosyne, badinage, mariposa, lepidoptera, coruscation, poignant, meme, oxymoron, xenophobia, asterism and 128 more...
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sionnach's Words
contumely, fomite, holmgang, poltroon, eleemosynary, obsidian, nugatory, grindcore, felch, recrudescent, pyx, parenteral and 3271 more...
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learning
A list of words whose meanings I am learning, either because a) I don't know the meaning b) I know the meaning, but could stand to better appreciate certain inflections or secondary meanings or c) ...
louche, educe, loam, cob, sclerotic, palliate, axial, syndicalist, ecumenical, sally, fatuous, parvenu and 1381 more...
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5-0
Hecko, words! I’m so happy I’ve found you. I want to keep you all and never want to lose you again. I hope you like it here.
amscray, thistledown, tine, tinsel, pungent, snarl, wail, lanky, viscid, dawdle, luminous, stow and 2719 more...
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Words That Populate My Mind
This is a collection of words I love, old ones that I love the sound of when I repeat them for years and new ones coined in news articles on up and coming trends and technologies - most of them I k...
aroma, mojo, blithely, fringe, fray, synchronicity, doublespeak, buzzword, thoughtcrime, portmanteau, newspeak, oldspeak and 963 more...
Tweets
Looking for tweets for onager.

reesetee American Heritage Dictionary defines this as a "fast-running wild ass."
I think I know some of these guys. Jan 19, 2011
super-logos Milo, this is good stuff ! Aug 15, 2008
milosrdenstvi Cited by Ogden Nash:
Have ever you harked to the jackass wild,
Which scientists call the onager?
It sounds like the laugh of an idiot child,
Or a hepcat on a harmoniger.
But do not sneer at the jackass wild,
There is a method in his heehaw.
For with maidenly blush and accent mild
The jenny-ass answers shee-haw.
Aug 15, 2008
chained_bear Ohhhhh, my gosh. Coolest word *ever*. Aug 15, 2008
milosrdenstvi A wild or feral donkey, originally; it was adopted as a Roman name for a catapult. Apparently it kicks about as hard. Aug 15, 2008