Federation of. Formerly Malay States, Malayan Union. a former federation of 11 states in the S Malay Peninsula: a British protectorate 1948–57; now forms part of Malaysia. 50,690 sq. mi. (131,287 sq. km).
British Dictionary definitions for malayan union federation
States of the Federation of Malaya, part of Malaysia, in the S Malay Peninsula, constituting Peninsular Malaysia: consists of the former Federated Malay States, the former Unfederated Malay States, and the former Straits Settlements. Capital: Kuala Lumpur. Pop: 17 144 322 (2000). Area: 131 587 sq km (50 806 sq miles)
Federation of Malaya, a federation of the nine Malay States of the Malay Peninsula and two of the Straits Settlements (Malacca and Penang): formed in 1948: became part of the British Commonwealth in 1957 and joined Malaysia in 1963