Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun methanogen

1 sense of methanogen

Sense 1
methanogen -- (archaebacteria found in anaerobic environments such as animal intestinal tracts or sediments or sewage and capable of producing methane; a source of natural gas)
       => archaebacteria, archaebacterium, archaeobacteria, archeobacteria -- (considered ancient life forms that evolved separately from bacteria and blue-green algae)