| Abbreviation | Definition |
|---|---|
| AAPI | American Association of Physicians of Indian origin |
| ADCL | Accredited Dosimetry Calibration Laboratory |
| AFZR | Autism-Free Zone Required |
| AOXIA | Misspelling of noun, Correct sp' is condition known as 'Apoxia' |
| APAA | Anterior Parietal Artery Aneurysm (arteries) |
| ART | Achilles Reflex Time |
| ART | Adaptive RadioTherapy |
| A-Si | Amorphous Silicon |
| BAT | B-mode Acquisition and Targeting |
| BE | Binding Energy |
| BEV | Beam's Eye View |
| B-G | Bragg-Gray cavity theory |
| BGO | Bismuth Germanate (Bismuth Germanium Oxide) |
| BIPM | Bureau International des Poides et Measures |
| BITE | Bio-Inspired TEchnology group |
| BLIP | Brookhaven Linac Isotope Producer |
| BPI | Brain Performance Index |
| BPP | Bio-Physical Profile |
| BSF | BackScatter Factor |
| BSS | Basic Safety Standards |