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petrodollar

noun [C]
 
 
/ˈpet.rəʊˌdɒl.ər/ US  /-roʊˌdɑː.lɚ/

Definition

a unit of money earned by countries that produce petroleum for sale to other countries: Petrodollars have maintained Kuwait's wealth.CurrenciesMining and quarrying
(Definition of petrodollar noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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