French Indochina
noun
an area in SE Asia, formerly a French colonial federation including Cochin-China, the protectorates of Annam, Cambodia, Tonkin, and Laos, and the leased territory of Kwangchowan: now comprising the three independent states of Vietnam, Cambodia, and Laos. Capital: Hanoi.
Compare
Indochina.
British Dictionary definitions for french indochina
French Indochina
noun
the territories of SE Asia that were colonized by France and held mostly until 1954: included Cochin China, Annam, and Tonkin (now largely Vietnam), Cambodia, Laos, and Kuang-Chou Wan (returned to China in 1945, now Zhanjiang)