anthracite coal
Definition
- Noun:
- A hard, lustrous, and nearly pure carbon form of coal. It is a natural mineral fuel characterized by its high carbon content, low volatile matter, and a high energy density. It burns with a short, blue, and smokeless flame, producing intense heat.
Usage
- Anthracite coal is used as a specific term to describe the highest rank of coal, distinguished from softer, smokier types like bituminous coal.
- It is typically used in contexts related to energy, geology, mining, and heating.
Examples
- The old furnace was designed to burn anthracite coal efficiently.
- Anthracite coal is prized for its clean-burning properties compared to other coals.
- This region's geology is rich in deposits of anthracite coal.
Advanced Usage
- "Anthracite" as a standalone noun: In technical and commercial contexts, "anthracite" is often used alone to mean anthracite coal.
- The stove requires anthracite, not bituminous coal.
Variants and Related Words
- Anthracite (n): The shortened, common form of "anthracite coal."
- Hard coal (n): A synonym for anthracite coal, emphasizing its physical property.
- Bituminous coal (n): A lower-rank, softer coal that is more common and contains more volatile matter.
Synonyms
- Hard coal
- Stone coal (less common)
Related Terms (Contextual)
- Carbon content: A key property distinguishing anthracite (high carbon) from other coal types.
- Smokeless fuel: A descriptive term highlighting one of anthracite coal's primary characteristics.
Noun
-
a hard natural coal that burns slowly and gives intense heat
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