Petrodollar (noun)

US dollars earned from the sale of petroleum.

Origin:

A combination of the words 'petroleum' and 'dollar', a petrodollar refers to us dollars earned from the sale of petroleum.

Examples:

1. The petrodollar has been a major source of wealth for oil-producing countries.
2. The petrodollar system refers to the practice of countries trading oil in US dollars.
3. Petrodollars have played a major role in the global economy for decades.
4. The decline of the petrodollar could have major implications for the global economy.
5. Petrodollars are used to finance government spending and investments in oil-producing countries.