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hard coal
 

Definitions from WordNet

Noun hard coal has 1 sense
  1. anthracite, anthracite coal, hard coal - a hard natural coal that burns slowly and gives intense heat
    --1 is a kind of coal

Definitions from the Web

Hard Coal

Definitions:

  1. Noun: A dense, black variety of coal, also known as anthracite, containing high carbon content and low volatile matter, usually used for heating and industrial purposes.
  2. Adjective: Characterized by its high carbon content and low volatile matter; pertaining to anthracite.

Sample Sentences:

  1. The miners extracted hard coal from deep within the earth.
  2. Hard coal burns cleaner and produces less ash than other types of coal.
  3. Due to its high carbon content, hard coal is often used as a fuel in steel production.
  4. The family relied on hard coal to keep their home warm during the harsh winter.

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