[{"Bold_text": "noun", "List Items": ["Also called A·si·at·ic wild ass.a near threatened near threatenedwild ass,Equus hemionus,inhabiting southwestern Asia and formerly distributed also through the Middle East and eastern Asia: the onager is one of the fastest mammals, able to run, and sometimes exceed, 40 miles (64 km) per hour, and, unlike most donkeys and horses, it has never been domesticated.", "an medieval military catapult for throwing stones."]}]