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
Origin of ligniteFr: see ligneous and amp; -ite
A soft, brownish-black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal. Also called brown coal.
- A low-grade, brownish-black coal
- Lignite is the main natural resource of Thailand.
From Latin lignum n (“firewood") + -ite