lignite

名词 lignite:

1. intermediate between peat and bituminous coal
   同义词：brown coal, wood coal

lig.nite

n.（名词）
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
褐煤：一种褐色软质煤，植物性物质的变化程度比泥煤重但比烟煤轻也作 brown coal

【引伸】
lignit.ic