: 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
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To curb the effects of the extreme heat and bad air, cities and states nationwide are increasingly offering more cooling centers, more bottled water distribution and air filtration systems to protect schoolchildren, especially those with asthma.
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Frank Witsil, Detroit Free Press, 20 June 2024
Direct health effects include hay fever and asthma exacerbations, as well as creating conditions for larger tick and mosquito populations for longer periods throughout the year.
—Melissa McCann, Hartford Courant, 16 June 2024
Heart conditions, asthma, low blood pressure, and other health issues can make saunas dangerous for some people, Mafi said.
—Maggie O'Neill, Verywell Health, 10 June 2024
By reducing sulfur dioxide and fine particulate matter spewed by ships, the change would help reduce strokes, asthma, lung cancer, and other diseases suffered by people who live in and around ports.
—Hayley Smith, Los Angeles Times, 9 June 2024
See all Example Sentences for asthma 
Frank Witsil, Detroit Free Press, 20 June 2024
Direct health effects include hay fever and asthma exacerbations, as well as creating conditions for larger tick and mosquito populations for longer periods throughout the year.
—Melissa McCann, Hartford Courant, 16 June 2024
Heart conditions, asthma, low blood pressure, and other health issues can make saunas dangerous for some people, Mafi said.
—Maggie O'Neill, Verywell Health, 10 June 2024
By reducing sulfur dioxide and fine particulate matter spewed by ships, the change would help reduce strokes, asthma, lung cancer, and other diseases suffered by people who live in and around ports.
—Hayley Smith, Los Angeles Times, 9 June 2024
See all Example Sentences for asthma
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Cite this Entry
“Asthma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/asthma. Accessed 7 Jul. 2024.
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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