| BAD | biological aerosol detection; British Association of Dermatologists |
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| BCW | biological and chemical warfare |
| BDS | Bachelor of Dental Surgery; biological detection system; Blessed Dementia Scale |
| BEAR | biological effects of atomic radiation |
| BEI | back-scattered electron imaging; biological exposure indexes; butanol-extractable iodine |
| 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) |
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