a mineral coal that contains volatile hydrocarbons and tarry matter and burns with a yellow, smoky flame; soft coal.
a soft black coal, rich in volatile hydrocarbons, that burns with a smoky yellow flame. Fixed carbon content: 46–86 per cent; calorific value: 1.93 × 107 – 3.63 × 107 J/kg Also called soft coal
A soft type of coal that burns with a smoky, yellow flame. Bituminous coal is the most abundant form of coal. It has a high sulfur content, and when burned, gives off sulfurous compounds that contribute to air pollution and acid rain. Compare anthracite, lignite.
George William (Johann Gottlob Wilhelm Bitzer”Billy”) 1872–1944, U.S. cinematographer. Historical Examples Hard Times Charles Dickens Hard Times Charles Dickens Adventures in Criticism Sir Arthur Thomas Quiller-Couch Hard Times Charles Dickens
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