fossil fuel

Types:

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coal

fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period

gas, natural gas

a fossil fuel in the gaseous state; used for cooking and heating homes

crude, crude oil, fossil oil, oil, petroleum, rock oil

a dark oil consisting mainly of hydrocarbons

anthracite, anthracite coal, hard coal

a hard natural coal that burns slowly and gives intense heat

bituminous coal, soft coal

rich in tarry hydrocarbons; burns readily with a smoky yellow flame

brown coal, lignite, wood coal

intermediate between peat and bituminous coal

steam coal

coal suitable for use under steam boilers

resid, residual oil

oil products that remain after petroleum has been distilled

Type of:

fuel

a substance that can be consumed to produce energy