noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of various archaebacteria capable of methanogenesis.
2. 2
   archaebacteria found in anaerobic environments such as animal intestinal tracts or sediments or sewage and capable of producing methane; a source of natural gas wordnet

Etymology

From methane + -o- + -gen.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.