archaebacteriaPronunciation: /ˌɑːkɪbakˈtɪərɪə/Definition of archaebacteria noun (singular archaebacterium /ˌɑːkɪbakˈtɪərɪəm/) another term for archaea.Derivatives archaebacterial adjective archaebacteria in other Oxford dictionaries Definition of archaebacteria in the US English dictionary
