Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

asthma

noun [U]
 
 
/ˈæs.mə/ US  /ˈæz-/

Definition

a medical condition that makes breathing difficult by causing the air passages to become narrow or blocked: an asthma sufferer an asthma attackRespiratory disorders
(Definition of asthma noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of asthma