Noun
One of the subdivisions of the trachea or windpipe; esp. one of the two primary divisions.
Source: Webster's dictionaryIn general, the net result is a stimulatory effect. citation Effects Humans A diagram of the bronchus. Source: Internet
The loosening of the muscles in the bronchus caused by theobromine helps alleviate the symptoms of asthma. Source: Internet
This is inflammation of the bronchus, that part of your breathing tube to the lungs before it splits to become the right and left bronchus. Source: Internet