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[me-than-uh-juh n, -jen] /mɛˈθæn ə dʒən, -ˌdʒɛn/
any of a diverse group of widely distributed archaebacteria that occur in anaerobic environments, as the intestinal tracts of animals, freshwater and marine sediments, and sewage, and are capable of producing methane from a limited number of substrates, including carbon dioxide and hydrogen, acetate, and methylamines: an important source of natural gas.
Origin of methanogen
1975-80; methane- + -o- + -gen
Related forms
methanogenic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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methanogen in Medicine

methanogen meth·an·o·gen (mě-thān'ə-jən, -jěn')
Any of various anaerobic methane-producing bacteria belonging to the family Methanobacteriaceae.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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