English

Definition of black gold noun from the Oxford Advanced Learner's Dictionary

 

black gold

 noun
noun
BrE BrE//ˌblæk ˈɡəʊld//
 
; NAmE NAmE//ˌblæk ˈɡoʊld//
 
[uncountable] (especially North American English, informal)
 
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See the Oxford Advanced American Dictionary entry: black gold