thunderstorm asthma en · NOUN
Meanings
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(uncountable) Asthma brought on by exposure to an asthma thunderstorm.
Thunderstorm asthma only appears to affect a subset of hay-fever sufferers and allergic asthmatics who react to pollen and, Nasser believes, fungal spores.
2006 Feb, NewScientist, page 45, column 1: