Xinjiang /ˈʃɪnˈt͡ʃ(j)ɑŋ/ noun1 •A Uyghur autonomous region of China, located in the sparsely populated northwest. Official name: Xinjiang Uygur Autonomous Region. Capital: Ürümqi.In mid-1978 the 800-km. Karakoram highway was opened, linking Xinjiang province in the People’s Republic of China with Havelian, north of Islamabad, after being under construction for 20 years. — 1981