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Definition of petrodollar noun from the Oxford Advanced Learner's Dictionary

petrodollar

noun
 
/ˈpetrəʊdɒlə(r)/
 
/ˈpetrəʊdɑːlər/
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  1. a unit of money that is used for calculating the money earned by countries that produce and sell oil
See petrodollar in the Oxford Advanced American Dictionary
efficacy
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