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marsh gas
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noun
a gaseous decomposition product of organic matter, consisting primarily of methane.
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āWasā is used for the indicative past tense of āto be,ā and āwereā is only used for the subjunctive past tense.
Also called swamp gas.
Origin of marsh gas
An Americanism dating back to 1775ā85
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, Ā© Random House, Inc. 2022
How to use marsh gas in a sentence
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
Ā© William Collins Sons & Co. Ltd. 1979, 1986 Ā© HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for marsh gas
marsh gas
n.
methane
The American HeritageĀ® Stedman's Medical Dictionary
Copyright Ā© 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.