methanogen Hear it!

methanogen definition

me·thano·gen (mə t̸han′ə jən, -jen′)

noun

an anaerobic microorganism that lives on carbon dioxide and hydrogen and gives off methane, found in swamp sediment, cows' stomachs, etc.

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Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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