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Comprehensive
Dictionary Suite
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carbon black any of various finely divided forms of carbon obtained from the incomplete burning of natural gas or petroleum oil, and used to make ink, pigments, and rubber, and as a filtering agent.
cutoff termination of a service such as electricity or natural gas. [1/5 definitions]
energy power or heat from sources such as the sun, wind, petroleum, natural gas, or coal that can be put to use by humans. [1/4 definitions]
ethane a colorless, odorless gas found in natural gas and used as a fuel or refrigerant.
fossil fuel any carbon-containing fuel formed from the remains of prehistoric plants and animals. Coal, petroleum, and natural gas are examples of fossil fuels.
fracking the injection into an oil or natural gas well of large amounts of pressurized water containing sand and chemicals, which fractures the surrounding rock, creating fissures through which oil or gas flows into the well, thus increasing its output; hydraulic fracturing.
hydraulic fracturing the injection into an oil or natural gas well of large amounts of pressurized water containing sand and chemicals, which fractures the surrounding rock, creating fissures through which oil or gas flows into the well; fracking.
methane a flammable hydrocarbon gas that results from the decay of organic material as in marshes and coal mines, and is the main constituent of natural gas.
petrochemical a chemical derivative of petroleum or natural gas, such as gasoline.
propane a colorless flammable gas found in petroleum and natural gas and used for fuel and in chemical synthesis.