anthracite

/'ænθrəsait/

Thân thiện

The geologist holds a piece of anthracite coal in her hand.

Definition

1. Noun:
   • A hard, glossy, black variety of coal that contains a high percentage of fixed carbon and a low percentage of volatile matter, burning with little smoke and an intense heat.

Usage

• Noun: Used to refer to a specific, high-grade type of coal.
  • Anthracite is often used for residential heating because it burns cleanly.
  • The region is known for its deposits of high-quality anthracite.

Examples

• Noun:
  • The old furnace was designed to burn anthracite efficiently.
  • Anthracite mining was a major industry in Pennsylvania in the 19th century.
  • Compared to bituminous coal, anthracite produces more heat with less pollution.

Advanced Usage

• "Anthracite coal": A common compound term specifying the type of coal. While "anthracite" alone is sufficient, this phrase is frequently used for clarity.
  • The steel plant sought a reliable source of anthracite coal.

Variants and Related Words

• Anthracitic (adjective): Of or relating to anthracite.
  • The anthracitic deposits were of exceptional purity.

Synonyms

• Hard coal: A direct synonym.
• Stone coal: A less common, regional synonym.

Different Meanings

• The word is highly specific and refers almost exclusively to this type of coal. It does not have other common meanings.

Học thuật

Noun

1. a hard natural coal that burns slowly and gives intense heat

Từ đồng nghĩa

• anthracite coal
• hard coal