asthma

noun

asth·​ma ˈaz-mə 

British ˈas-

: 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)

asthmatic

az-ˈma-tik 

British as-

adjective or noun

asthmatically

az-ˈma-ti-k(ə-)lē 

British as-

adverb

Examples of asthma in a Sentence

Recent Examples on the Web

Travelers with asthma, COPD or other respiratory conditions may want to bring N95 masks and monitor daily air quality forecasts. — James Ward, USA Today, 25 Aug. 2026

Taking glutathione through a nebulizer may constrict the airways of people who have asthma or chronic lung conditions. — ABC News, 23 Aug. 2026

Participants experienced fewer asthma symptoms and a 70% reduction in emergency department visits, along with fewer missed days of school and work. — Chicago Tribune, 20 Aug. 2026

Researchers also found that siblings closer in age appeared to have lower risks for several conditions, including allergies and asthma. — Abby Norman, Verywell Health, 20 Aug. 2026

Word History

Etymology

Middle English asma, borrowed from Medieval Latin asma, asthma, borrowed from Greek ásthma "panting, shortness of breath, asthma (as a medical condition)," of uncertain origin

First Known Use

14th century, in the meaning defined above

Phrases Containing asthma

• anti-asthma
• bronchial asthma

Rhymes for asthma

• chiasma
• plasma
• histoplasma
• mycoplasma
• toxoplasma
• miasma

Kids 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

asthmatic

az-ˈmat-ik 

adjective or noun

asthmatically

-ˈmat-i-k(ə-)lē 

adverb

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)