bronchodilator vs medicament

bronchodilator and medicament both are nouns.

Word	Noun	Adjective	Verb	Adverb
bronchodilator	Yes	No	No	No
medicament	Yes	No	No	No

As nouns, medicament is a hypernym of bronchodilator; that is, medicament is a word with a broader meaning than bronchodilator:

bronchodilator: a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of bronchodilator include medication, medicinal drug, medicine.

bronchodilator (noun)	medicament (noun)
a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs	(medicine) something that treats or prevents or alleviates the symptoms of disease