Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “streptococcus”


noun [C]     /ˌstrep.təˈkɒk.əs/ US  /-ˈkɑː.kəs/ (plural streptococci) specialized
a bacterium , many types of which cause disease : Tonsillitis is normally caused by infection with streptococci.Bacteria, moulds, germs and viruses streptococcal     /-ˈkɒk.l̩/ US  /-ˈkɑː.kl̩/ adjective Pneumonia tends to be caused by streptococcal or viral infection .Bacteria, moulds, germs and viruses
(Definition of streptococcus noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of streptococcus

Translations of “streptococcus”

Word of the Day


to mix eggs with a little milk and mix again as they are being fried

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More