water gas 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 fuel gas that is a poisonous mixture of hydrogen, carbon dioxide, carbon monoxide, and nitrogen, made by forcing steam over incandescent coke or coal
water gas definition by American Heritage Dictionary
A fuel gas containing about 50 percent carbon monoxide, 40 percent hydrogen, and small amounts of methane, carbon dioxide, and nitrogen, made by passing steam and air over heated coke or coal.