Definition of "coal-dust" []

• The dust of coal; powdered coal. (noun)

The Century Dictionary (Public Domain)

• "Mr. Stricklin said federal investigators concluded that the explosion occurred because broken water sprays on a cutting machine failed to put out an initial spark that ignited methane gas and triggered a coal-dust explosion."
• "Despite that defeat, the Mine Safety and Health Administration is proposing the new rules which would require companies to provide gear to each miner to measure coal-dust exposure — a growing hazard to miners — and install alarms to protect them from heavy machinery."
• "Massey general counsel Shane Harvey said the company doesn't believe that missing water sprays or worn bits on a piece of mining equipment contributed to a methane ignition followed by a massive coal-dust explosion."