black gold
The term "black gold" is an idiomatic expression used to highlight the high value of certain black-colored commodities.
Definition
B2Oil Industry
(informal, idiomatic)Petroleum or crude oil, emphasizing its high economic value.
Example
- After months of drilling, they finally hit black gold.
C1Culinary
(historical)Black pepper, which was historically a highly valuable spice.
Example
- In ancient times, black gold was worth its weight in gold.
C2Jewelry
(technical)Gold that has been colored black through processes like patination, deposition, or oxidation.
Example
- The artisan crafted a stunning ring out of black gold.
B2Mining
(historical, industrial)Coal, particularly when referring to its historical or industrial value.
Example
- During the Industrial Revolution, coal was often referred to as black gold.
Similar
Terms that have similar or relatively close meanings to "black gold":
blue goldred goldgreen goldliquid goldold goldwhite goldgo goldcoal blackrose goldgold mineblack diamondgold feverblack coaldigital goldgood as goldyellow metalblack and blueblack mudgold plategold in them thar hillspotable goldblack and whiteblack velvetbronze yellowpalladium blackgold dustharvest goldstrike goldgold rushroyal purplegolden brown