: a chronic lung disorder that is marked by recurring episodes of airway obstruction (as from bronchospasm) manifested by labored breathing accompanied especially by wheezing and coughing and by a sense of constriction in the chest, and that is triggered by hyperreactivity to various stimuli (such as allergens or rapid change in air temperature)
Examples of asthma in a Sentence
Recent Examples on the Web
Ground-level ozone levels could reach concentrations considered unsafe for children, seniors, and people with asthma or heart disease.
—
Martha McHardy, MSNBC Newsweek, 12 July 2025
Officials said the air quality index was expected to reach levels that are unhealthy for sensitive groups, like the elderly or those with asthma.
—Ethan Wolin
updated July 10, Sacbee.com, 10 July 2025
This condition affects approximately 90% of people with asthma and up to 20% of the general population.
—Lindsay Curtis, Health, 10 July 2025
Corbett and Molly Martens met in 2008 following the death of Corbett’s late wife, who suffered an asthma attack.
—Audrey Conklin, FOXNews.com, 6 July 2025
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Martha McHardy, MSNBC Newsweek, 12 July 2025
Officials said the air quality index was expected to reach levels that are unhealthy for sensitive groups, like the elderly or those with asthma.
—Ethan Wolin
updated July 10, Sacbee.com, 10 July 2025
This condition affects approximately 90% of people with asthma and up to 20% of the general population.
—Lindsay Curtis, Health, 10 July 2025
Corbett and Molly Martens met in 2008 following the death of Corbett’s late wife, who suffered an asthma attack.
—Audrey Conklin, FOXNews.com, 6 July 2025
See All Example Sentences for asthma
Cite this Entry
“Asthma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/asthma. Accessed 22 Jul. 2025.
Copy CitationKids Definition
asthma
noun
asth·ma
ˈaz-mə 
: a condition that is marked by difficulty in breathing with wheezing, a feeling of tightness in the chest, and coughing
Medical Definition
asthma
noun
asth·ma
ˈaz-mə
: a chronic lung disorder that is marked by recurring episodes of airway obstruction (as from bronchospasm) manifested by labored breathing accompanied especially by wheezing and coughing and by a sense of constriction in the chest, and that is triggered by hyperreactivity to various stimuli (as allergens or rapid change in air temperature)
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