Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “diphtheria”

diphtheria

noun [U]    /dɪfˈθəɪr·i·ə, dɪp-/
a serious infectious disease that causes fever and difficulty in breathing and swallowing
(Definition of diphtheria noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of diphtheria

Definitions of “diphtheria” in other dictionaries

Word of the Day

tie the knot

to get married

Word of the Day

Blog

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