: 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
Still, there are numerous claims about what honey may be able to do to reduce the impact of allergies and allergic diseases, like asthma and eczema.
—
Daniel More, Verywell Health, 29 Apr. 2025
Gypsum is commonly found in drywall and plaster, and construction workers have reported long-term respiratory ailments like asthma and bronchitis.
—Madison Dapcevich, Discover Magazine, 25 Apr. 2025
Originally approved by the FDA in 2003 for asthma, omalizumab is now showing serious promise in treating severe food allergies—and yes, seasonal allergies too.
—Thomas G. Moukawsher, MSNBC Newsweek, 24 Apr. 2025
The study found that 25 million more people in the U.S. than last year's report are breathing air that scores a failing grade in terms of pollutants that can cause premature death, impair cognitive abilities and trigger asthma attacks.
—Jeanine Santucci, USA Today, 24 Apr. 2025
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Daniel More, Verywell Health, 29 Apr. 2025
Gypsum is commonly found in drywall and plaster, and construction workers have reported long-term respiratory ailments like asthma and bronchitis.
—Madison Dapcevich, Discover Magazine, 25 Apr. 2025
Originally approved by the FDA in 2003 for asthma, omalizumab is now showing serious promise in treating severe food allergies—and yes, seasonal allergies too.
—Thomas G. Moukawsher, MSNBC Newsweek, 24 Apr. 2025
The study found that 25 million more people in the U.S. than last year's report are breathing air that scores a failing grade in terms of pollutants that can cause premature death, impair cognitive abilities and trigger asthma attacks.
—Jeanine Santucci, USA Today, 24 Apr. 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 5 May. 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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