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biogas

or bi·o-gas

[bahy-oh-gas]
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noun
  1. any gas fuel derived from the decay of organic matter, as the mixture of methane and carbon dioxide produced by the bacterial decomposition of sewage, manure, garbage, or plant crops.
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Origin of biogas

First recorded in 1970–75; bio- + gas
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for biogas

biogas

noun
  1. a gas that is produced by the action of bacteria on organic waste matter: used as a fuel
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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

biogas in Science

biogas

[bīō-găs′]
  1. See under biofuel.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.