| 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 ... |
| BIBRA | British Industrial Biological Research Association |
| immunologic and biological factors | A collective grouping for biologically active substances that play a role in the functioning of the immune system and those that show biological or physiological activity. (12 Dec 1998) |
|---|---|
| integrated biological hazard potential | <radiobiology> Total biological hazard potential of a collection of radioactive materials summed over their decay lifetimes. One measure of the integrated biological hazard potential is the amount of water one would need to use to dilute the materials to the point where the water would be safe to drink. (09 Oct 1997) |