coal that is rich in volatile hydrocarbons, making it a suitable source of domestic gas
gas coal in American English
bituminous coal used to make any flammable gas
gas coal in American English
noun
a soft coal suitable for the production of gas
Word origin
[1875–80]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: fan-tan, graph, hat trick, musical chairs, weekender