Definition of asthma noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈæsmə//
; NAmE NAmE//ˈæzmə//
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a medical condition of the chest that makes breathing difficult a severe asthma attack We have thousands of asthma cases a year. children who develop asthma Word Originlate Middle English: from medieval Latin asma, from Greek asthma, from azein ‘breathe hard’.
See the Oxford Advanced American Dictionary entry: asthma