Williams syndrome: A genetic disorder characterized by mild mental retardation, unique personality characteristics, unusual facial features, and cardiovascular disease. The level of calcium tends to be high in blood (hypercalcemia) and urine (hypercalciuria).
Long March: Long March, (1934â35), the 6,000-mile (10,000-km) historic trek of the Chinese communists, which resulted in the relocation of the communist revolutionary base from southeastern to northwestern China and in the emergence of Mao Zedong as the undisputed party leader. Fighting Nationalist forces
An 8,000 mile crossing from China to Spain, passing through eight countries and taking 20 days, has raised hopes of a new Silk Train transport route. 'Yixinou' sets the record for the longest train journey in history: 13,052 kilometers between the Chinese city of Yiwu and the Spanish capital Madrid Photo: Xinhua/Rex.