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Multi-word Results
| bituminous coal |
a mineral coal that yields pitch and tar and has a yellow smoky flame when it burns; soft coal. |
| brown coal |
a soft dark brown coal having the original woody texture; lignite. |
| cannel coal |
see "cannel." |
| coal gas |
a gas used for lighting and heating that is produced by the distillation of bituminous coal. [2 definitions] |
| coal measures |
coal-bearing strata; coal beds. [2 definitions] |
| coal mining |
the industry, act, or process of digging coal out of the earth. |
| coal oil |
any fuel oil produced by distillation of bituminous coal. |
| coal tar |
a thick black liquid formed by the distillation of bituminous coal, used as a raw material in the creation of dyes, drugs, plastics, and paints. |
| cob coal |
large rounded lumps of coal that resemble cobblestones. |
| hard coal |
see "anthracite." |
| soft coal |
see "bituminous coal." |
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