co·lo·nial·ism /kəˈloniəˌlɪzəm, njəˌlɪ-/
1. The state or quality of, or the relationship involved in, being colonial.
The last tie of colonialism which bound us to the mother country is broken. --Brander Matthews.
2. A custom, idea, feature of government, or the like, characteristic of a colony.
3. The colonial system of political government or extension of territory, by which one nation exerts political control over another nation, territory, or people, maintaining the colony in a state of dependence, its inhabitants not having the same full rights as those of the colonial power. The controlling power is typically extended thus by military force or the threat of force.
n : exploitation by a stronger country of weaker one; the use of
the weaker country's resources to strengthen and enrich
the stronger country