bacteria
A type, species, or strain of bacterium.
Other meanings
An oval bacterium, as distinguished from a spherical coccus or rod-shaped bacillus.
A kind of
- micro-organism
Kinds of bacteria
- true bacteria
- rod
Example sentences
Word history
From Ancient Greek "βακτήριον" (little rod).
Where this comes from
This definition is adapted from “bacteria” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above; 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.