| methanogen | (n) archaebacteria found in anaerobic environments such as animal intestinal tracts or sediments or sewage and capable of producing methane; a source of natural gas |
| methanogen | n. A type of archaebacteria found in anaerobic environments such as animal intestinal tracts or sediments or sewage, and capable of producing |
| メタン細菌 | [メタンさいきん, metan saikin] (n) methanogen [Add to Longdo] |