bacterium
A single-celled organism with cell walls but no nucleus or organelles.
A kind of
- micro-organism
Kinds of bacterium
- true bacteria
- rod
Related words
- agrobacterium
- bactericidal
- bactericide
- bacteroid
- betaproteobacterium
- diplobacterium
- endobacterium
- enterobacterium
- epibacterium
- halobacterium
- heliobacterium
- macrobacterium
Word history
From Ancient Greek "βακτήριον" (small staff).
Where this comes from
This definition is adapted from “bacterium” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.