| BEI | back-scattered electron imaging; biological exposure indexes; butanol-extractable iodine |
|---|---|
| BEIR | biological effects of ionizing radiation |
| BFB | biological feedback; bronchial foreign body |
| BHL | bilateral hilar lymphadenopathy; biological half-life |
| BI | background interval; bacterial or bactericidal index; base-in [prism]; basilar impression; Billroth ... |