| BHR | basal heart rate; benign hypertrophic prostatitis; bronchial hyperreactivity |
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| BL | Barre-Lieou [syndrome]; basal lamina; baseline; Bessey-Lowry [unit]; black light; bladder; bleeding;... |
| BLN | bronchial lymph node |
| BMPI | bronchial mucous proteinase inhibitor |
| BN | bladder neck; branchial neuritis; bronchial node; brown Norway [rat]; bulimia nervosa |
| bronchial tubes | <anatomy> The bronchial tubes which arise from the branching of the trachea, especially. The subdivision of the bronchi. Origin: L, pl. Cf. Bronchus. Source: Websters Dictionary (01 Mar 1998) |
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| bronchial veins | Many veins running in front of and behind the bronchi and uniting into two main trunks which empty on the right side into the azygos vein, on the left into the accessory hemiazygos or the left superior intercostal vein. Synonym: venae bronchiales. (05 Mar 2000) |
| bronchial voice | A modification of the voice sounds, by which they are intensified and heightened in pitch; observed in auscultation of the chest in certain cases of intro-thoracic disease. Origin: Gr. Windpipe + sound. Source: Websters Dictionary (01 Mar 1998) |
| trans-bronchial biopsy | <chest medicine, procedure> A biopsy that is performed through the wall of the bronchus (using the bronchoscope). This involves obtaining a small piece of lung tissue for microscopic analysis. This is a useful alternative to an open surgical biopsy, where an incision must be made. (17 Mar 1998) |