Noun: archaebacteria
- Microorganisms that are evolutionarily distinct from bacteria and eukaryotes, now classified as Archaea
"Archaebacteria can survive in extreme environments like hot springs";
- archaebacterium, archaeobacteria, archeobacteria [N. Amer]
Derived forms: archaebacterias
Part of: division Archaebacteria
Encyclopedia: Archaebacteria