bronchusnoun · Level 2 SAT1Either of the two subdivisions of the trachea conveying air into the lungsThe scan revealed a small obstruction in the left bronchus, which was causing the patient's labored breathing.ModuleLevel 2RegistercommonCollectionCollection 038SAT Plus planAlso in Collection 038beau, beck, bibliophile, bigamy, brimstone, brokerage, denigrate, censor and 1 more