noun. a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs.
- medicinal drug
- ipratropium bromide
- over-the-counter medicine
- over-the-counter drug
- prescription drug
Example sentences of the word bronchodilator
1. Noun, singular or mass
Caffeine, found in coffee and tea, can act as a bronchodilator.