| fossil fuels | Any hydrocarbon deposit that may be used for fuel. Examples are petroleum, coal, and natural gas. (12 Dec 1998) |
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| advanced fuels | <radiobiology> There are several elements or isotopes that could be fused together, besides the DT fuel mixture. Many such fuel combinations would have various advantages over DT, but it is generally more difficult to achieve fusion with these advanced fuels than with the DT mix. (09 Oct 1997) |
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| aneutronic fuels | <physics> Advanced fusion fuels which would not produce fusion neutrons. (16 Dec 1997) |
| fossil | 1. Dug out of the eart; as, fossil coal; fossil salt. 2. <paleontology> Like or pertaining to fossils; contained in rocks. Whether petrified or not; as, fossil plants, shells. Fossil copal, a resinous substance, first found in the blue clay at Highgate, near London, and apparently a vegetable resin, partly changed by remaining in the earth. Fossil cork, flax, paper, or wood, varieties of amianthus. Fossil farina, a soft carbonate of lime. Fossil ore, fossiliferous red hematite. Formerly all minerals were called fossils, but the word is now restricted to express the remains of animals and plants found buried in the earth. 3. <paleontology> The remains of an animal or plant found in stratified rocks. most fossils belong to extinct species, but many of the later ones belong to species still living. 4. A person whose views and opinions are extremely antiquated; one whose sympathies are with a former time rather than with the present. Source: Websters Dictionary (01 Mar 1998) |
| fossil fuel | Solid, liquid, or gaseous fuels formed in the ground after millions of years by chemical and physical changes in plant and animal residues under high temperature and pressure. Oil, natural gas, and coal are fossil fuels. (05 Dec 1998) |
Synonyms : Fossil Fuel, Fuel, Fossil, Fuels, Fossil, Natural Gas
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