gas coal
Noun
Meaning
gas coal (countable and uncountable, plural gas coals)
A bituminous or hydrogenous coal yielding a high proportion of volatile material, and therefore available for the manufacture of illuminating gas.
Noun
gas coal (countable and uncountable, plural gas coals)
A bituminous or hydrogenous coal yielding a high proportion of volatile material, and therefore available for the manufacture of illuminating gas.