noun

bacteria

bacteria

Some bacteria are harmful to humans.

Some bacteria are harmful to humans.

Yogurt is made using beneficial bacteria.

Yoghurt is made using beneficial bacteria.

((bacteria)) + plural verb Some bacteria are harmful.

((bacteria)) + singular verb (as collective noun) Good bacteria helps digestion.

Synonyms: germs, microbes

From Greek 'bakterion' meaning 'small staff', as the first ones observed were rod-shaped.

Remember that 'bacteria' is the plural of 'bacterium'. Think of a 'back' pack full of tiny living things.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.