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bituminous coal:see coalcoal,
fuel substance of plant origin, largely or almost entirely composed of carbon with varying amounts of mineral matter. Types
There is a complete series of carbonaceous fuels, which differ from each other in the relative amounts of moisture, volatile matter,
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bituminous coal[bī′tü·mə·nəs ′kōl]
A dark brown to black coal that is high in carbonaceous matter and has 15-50% volatile matter. Also known as soft coal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005