n. four; set of four; a. in four parts; in sets of four; Geology, applied to period following Tertiary. quaternion, n. set of four; Mathematics, quotient of two vectors, or factor changing (by multiplication) one vector into another. quaternity, n. state of being fourfold.
Red recalls the struggle for independence. Blue stands for the Indian Ocean. Yellow expresses hope for a bright future. Green represents agriculture and vegetation. Effective date: 12 March 1968.