| Main Entry: | coal |
| Part of Speech: | noun |
| Definition: | bitumen |
Synonyms: |
anthracite, ash, carbon, char, charcoal, cinder, culm, ember, fuel, scoria, slack, smut, spark, stoke |
| Main Entry: | dross |
| Part of Speech: | noun |
| Definition: | remains |
Synonyms: |
dregs, impurity, lees, recrement, refuse, scobs, scoria, scum, sediment, sinter, slag, trash, waste |
| Main Entry: | lava |
| Part of Speech: | noun |
| Definition: | volcano matter |
Synonyms: |
ashes, basalt, coulee, magma, obsidian, scoria, slag |
| Notes: | lava is the molten rock from a volcano; it is called magma before it comes out |
| Main Entry: | slag |
| Part of Speech: | noun |
| Definition: | debris |
Synonyms: |
ashes, cinders, dross, lava, recrement, refuse, residue, scoria |