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We found one dictionary with English definitions that includes the word organization of petroleum-exporting countries: Click on the first link on a line below to go directly to a page where "organization of petroleum-exporting countries" is defined. General (1 matching dictionary) organization of petroleum-exporting countries: Dictionary.com [home, info]

Quick definitions from WordNet (Organization of petroleum-exporting countries) ▸ noun:  an organization of countries formed in 1961 to agree on a common policy for the production and sale of petroleum