marsh gas
noun
a gaseous decomposition product of organic matter, consisting primarily of methane.
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Also called swamp gas.
Origin of marsh gas
An Americanism dating back to 1775–85
Words nearby marsh gas
marsh deer, marsh elder, marsh fern, marsh fever, Marshfield, marsh gas, marsh grass, marsh harrier, marsh hawk, marsh hen, marshland
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for marsh gas
Many varieties of coal give off a gas known as marsh-gas or fire-damp.
The Wonder Book of Knowledge|Various
British Dictionary definitions for marsh gas
marsh gas
noun
a hydrocarbon gas largely composed of methane formed when organic material decays in the absence of air
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for marsh gas
marsh gas
n.
methane
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.