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lignite in British English
(ˈlɪɡnaɪt)
noun
a brown carbonaceous sedimentary rock with woody texture that consists of accumulated layers of partially decomposed vegetation: used as a fuel. Fixed carbon content: 46–60 per cent; calorific value: 1.28 × 107 to 1.93 × 107 J/kg (5500 to 8300 Btu/lb)
Also called: brown coalDerived forms
lignitic (lɪɡˈnɪtɪk) adjective
lignite in American English
(ˈlɪgˌnaɪt)
noun
a usually soft, brownish-black coal in which the texture of the original wood can often still be seen: in the process of coalification it represents the intermediate stage in density and amount of carbon between peat and bituminous coal
Derived forms
lignitic (ligˈnitic) (ˈlɪgˈnɪtɪk) adjective
Word origin
Fr: see ligneous & -ite1Image oflignite
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