<p><strong>Noun:</strong></p><ul><li>Official name: Tibet Autonomous Region<ul><li>An administrative division of China, north of the Himalayas: prior to 1950, a theocracy under the Dalai Lama.</li><li>The highest country in the world, average elevation about 16,000 feet (4,877 meters).</li><li>Area: 471,660 square miles (1,221,599 square kilometers).</li></ul></li><li>Lhasa</li><li>Also (Older Spelling): Thi·bet</li><li>Also called (Older Spelling): Si·tsang<ul><li>Plateau of Tibet, a vast plateau in southern central Asia bounded by the Tarim and Qaidam basin deserts to the north and the Himalayan, Karakoram, and Pamir mountain ranges to the south and west:<ul><li>Highest plateau in the world, averaging about 15,000 feet (4,570 meters).</li><li>Area: 850,000 square miles (2,200,000 square kilometers).</li></ul></li></ul></li><li>Also called: Tibetan Highlands</li></ul>