noun Download 🔗Share A long-term respiratory condition, in which the airways may unexpectedly and suddenly narrow, often in response to an allergen, cold air, exercise, or emotional stress. Symptoms include wheezing, shortness of breath, chest tightness, and coughing. Examples : "My brother suffers from asthma, which means he sometimes has trouble breathing, especially when he exercises. " medicine disease condition body physiology organ Chat with AIVocabulary GamePractice Reading
