Definition of Livingstone, David
- (1813–73), Scottish missionary and explorer. He went to Bechuanaland as a missionary in 1841. On extensive travels, he discovered Lake Ngami (1849), the Zambezi River (1851), and the Victoria Falls (1855). In 1866 he went in search of the source of the Nile, and was found in poor health by Sir Henry Morton Stanley in 1871.