Asthma (noun)

1. A common lung condition characterized by difficulty breathing, wheezing, and coughing, often caused by inflammation and narrowing of the airways.
2. A condition of the respiratory system in which the airways constrict, causing difficulty in breathing.

Origin:

Old english, from greek asthma "panting" (because of the difficulty in breathing associated with the condition).

Examples:

1. He has had asthma since he was a child.
2. The asthma attack was brought on by exposure to the allergen.
3. Asthma is a chronic condition that requires ongoing management.
4. The doctor prescribed an inhaler for her asthma.
5. The asthma symptoms improved after the treatment.