black coal
"Black coal" refers to a type of coal that is dark in color and typically has a high carbon content, making it a valuable energy source.
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Definition
B2Energy Production
(technical)A dark-colored, high-carbon fossil fuel used primarily for generating electricity and heat.
Example
- Power plants often use black coal due to its high energy content.
C1Geology
(technical, academic)A sedimentary rock formed from decomposed plant material, known for its dark color and high carbon content.
Example
- Geologists study black coal to understand the Earth's historical climate conditions.
B1General
(non-technical)Any type of dark-colored coal, regardless of its specific quality or use.
Example
- The miners extracted black coal from the underground seam.
Similar
Terms that have similar or relatively close meanings to "black coal":
small coalcoal blackburn coalmineral coalclean coalstone coalcoal titcoal plantcoal burnercoal holeblack goldblack mud