The Collaborative International Dictionary of English v.0.48:

Malagasy Republic \Malagasy Republic\ prop. n.
   Former name of the Republic of Madagascar, a nation in Africa
   occupying the island of Madagascar in the Indian Ocean east
   of Mozambique.
   [PJC]

WordNet (r) 3.0 (2006):

Malagasy Republic
    n 1: a republic on the island of Madagascar; achieved
         independence from France in 1960 [syn: Madagascar,
         Republic of Madagascar, Malagasy Republic]