noun
- A large group of single-celled prokaryotic organisms that lack a membrane-bound nucleus; true bacteria, as distinguished from archaea.
Usage: biology; plural form; singular is eubacterium; also called Eubacteria (domain) or true bacteria
Examples
- Eubacteria are found in nearly every environment on Earth, from soil to the human gut.
- Most of the bacteria that cause human infections are eubacteria, not archaea.
- In the three-domain system of life, eubacteria form one of the three major domains.
- Eubacteria have cell walls made of peptidoglycan, which distinguishes them from archaea.
- Students learned that eubacteria reproduce primarily through binary fission.