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单词 methanogen
释义

WordReference Random House Unabridged Dictionary of American English © 2024
meth•an•o•gen  (me thanə jən, -jen′),USA pronunciation n. 
  1. Microbiologyany 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.
  • methane- + -o- + -gen 1975–80
meth•an′o•genic, adj. 

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