firedamp definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a gas, largely methane, formed in coal mines, which is explosive when mixed with air
firedamp definition by American Heritage Dictionary
- A combustible gas, chiefly methane, occurring naturally in mines from the decomposition of coal.
- The explosive mixture of firedamp and air.