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

 

petrodollar

 noun
noun
BrE BrE//ˈpetrəʊdɒlə(r)//
 
; NAmE NAmE//ˈpetroʊdɑːlər//
 
 
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a unit of money that is used for calculating the money earned by countries that produce and sell oil
See the Oxford Advanced American Dictionary entry: petrodollar