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English definition of “asthma”

asthma

noun [U]     /ˈæs.mə/ US  /ˈæz-/
a medical condition that makes breathing difficult by causing the air passages to become narrow or blocked : an asthma sufferer an asthma attack Respiratory disorders
(Definition of asthma noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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