1. An intergovernmental association of countries, established by and operated according to multilateral treaty, whose purpose is to pursue the common aims of those countries. • Examples include the World Health Organization, the International Civil Aviation Organization, and the Organization of Petroleum Exporting Countries. [Cases: International Law 10.45. C.J.S. International Law §§ 59–65.]
2. Loosely, an intergovernmental or nongovernmental international association.