Did you know?

Click any word in a definition or example to find the entry for that word

British pronunciation of 


view main entry for bacteria noun  /bækˈtɪəriə/
British English pronunciation: bacteria
Click to listen to the pronunciation of bacteria

derived word


British English pronunciation: bacterial
Click to listen to the pronunciation of bacterial

This is the British English pronunciation of bacteria.

View American English pronunciation of bacteria.

Open Dictionary

patio diplomacy

high-level diplomats meeting and dining in an informal environment e.g. a party or club

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play