capital of Laos, on the Mekong River: pop. 377,000
See Vientiane in American Heritage Dictionary 4
(vyĕn-tyänˈ)
The capital and largest city of Laos, in the north-central part of the country on the Mekong River and the Thailand border. It became the capital of the French protectorate of Laos in 1899 and later the capital of independent Laos. Population: 196,000.