Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “asthma”

asthma

noun [U]    /ˈæz·mə/
a chest disease in which breathing can become difficult, often caused by an allergic reaction
(Definition of asthma noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of asthma

Definitions of “asthma” in other dictionaries

Word of the Day

work out

to exercise in order to improve the strength or appearance of your body

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