1. a former country in southeastern Asia that existed from 1954 (after the defeat of the French at Dien Bien Phu) until 1975 when South Vietnam collapsed at the end of the Vietnam War;
WordNet (r) 3.0 (2006):
North Vietnam
n 1: a former country in southeastern Asia that existed from
1954 (after the defeat of the French at Dien Bien Phu)
until 1975 when South Vietnam collapsed at the end of the
Vietnam War