The total mass of organisms in a given area or volume
Used in the same subject area: Environmental science, Resources and energy.
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Cannel coal
A kind of mineral coal of a black color, sufficiently hard and solid to be cut and polished. It burns readily, with a clear, yellow flame, and on this account has been used as a substitute for candles.
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A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal.
Used in the same subject area: Environmental science, Resources and energy.a flammable hydrocarbon oil used as fuel in lamps and heaters
Used in the same subject area: Environmental science, Resources and energy.The act of depleting or emptying.
Used in the same subject area: Environmental science, Resources and energy.The quality of being efficient or producing an effect or effects; efficient power; effectual agency.
Used in the same subject area: Environmental science, Resources and energy.A lighted coal, smoldering amid ashes; -- used chiefly in the plural, to signify mingled coals and ashes; the smoldering remains of a…
Used in the same subject area: Environmental science, Resources and energy.Internal or inherent power; capacity of acting, operating, or producing an effect, whether exerted or not; as, men possessing energies…
Used in the same subject area: Environmental science, Resources and energy.Dug out of the earth; as, fossil coal; fossil salt.
Used in the same subject area: Environmental science, Resources and energy.fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
Used in the same subject area: Environmental science, Resources and energy.Any matter used to produce heat by burning; that which feeds fire; combustible matter used for fires, as wood, coal, peat, etc.
Used in the same subject area: Environmental science, Resources and energy.An aeriform fluid; -- a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanent…
Used in the same subject area: Environmental science, Resources and energy.of or relating to the heat in the interior of the earth
Used in the same subject area: Environmental science, Resources and energy.energy derived from the heat in the interior of the earth
Used in the same subject area: Environmental science, Resources and energy.of or relating to the heat in the interior of the earth
Used in the same subject area: Environmental science, Resources and energy.An oil used for illuminating purposes, formerly obtained from the distillation of mineral wax, bituminous shale, etc., and hence calle…
Used in the same subject area: Environmental science, Resources and energy.a flammable hydrocarbon oil used as fuel in lamps and heaters
Used in the same subject area: Environmental science, Resources and energy.a flammable hydrocarbon oil used as fuel in lamps and heaters
Used in the same subject area: Environmental science, Resources and energy.Fixed or determined by nature; pertaining to the constitution of a thing; belonging to native character; according to nature; essentia…
Used in the same subject area: Environmental science, Resources and energy.
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A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, general…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A hard, compact variety of mineral coal, of high luster, differing from bituminous coal in containing little or no bitumen, in consequ…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.Mineral pitch, Jews' pitch, or compact native bitumen. It is brittle, of a black or brown color and high luster on a surface of fractu…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); bur…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A hollow vessel or dish, to hold water for washing, and for various other uses.
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.Destitute of light, or incapable of reflecting it; of the color of soot or coal; of the darkest or a very dark color, the opposite of…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A mineral, called also sphalerite, and by miners mock lead, false galena, and black-jack. It is a zinc sulphide, but often contains so…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A kind of mineral coal, or brown lignite, burning with a weak flame, and generally a disagreeable odor; -- found at Bovey Tracey, Devo…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.Of a dark color, of various shades between black and red or yellow.
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.Native tin dioxide; tin stone; a mineral occurring in tetragonal crystals of reddish brown color, and brilliant adamantine luster; als…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A mineral, found in crystals, of a yellow to green or brown color, and consisting of aluminia and glucina. It is very hard, and is oft…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.A mineral, composed of silica, magnesia, and iron, of a yellow to green color. It is common in certain volcanic rocks; -- called also…
Its definition shares important concepts with this word: mineral, coal, black, color, sufficiently.
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