Chronic respiratory disease characterized by bronchoconstriction, excessive mucus secretion, and edema of the pulmonary alveoli, resulting in difficulty in exhaling, wheezing, and cough.
Source: PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1128 [Terms] [Paper]