| Abbreviation | Definition |
|---|---|
| BBP | Breast Body Physics |
| BBR | Back Bouncing Rod |
| BC | Boundary Condition |
| BCC | body-centered cubic |
| BCMP | Biology Chemistry Math Physics |
| BCR | Boron Control Rod |
| BCS | Bardeen Cooper Schrieffer theory of superconductivity |
| BCT | body-centered tetragonal |
| BD | Below Detection |
| BD | Bounded Distortion |
| BD | Bunch-Davies vacuum state |
| BE | Bose Einstein |
| BEAM | Bosiger Energy Alignment Method |
| BEAR | Biological Effects Of Atomic Radiation |
| BEDO | Beitr. elektronenmikroskop. Direktabb. Oberfl. |
| BEEE | Basal Energy Expenditure Equation |
| BEEM | Ballistic Electron Emission Microscopy |
| BEFD | Backward Euler centered Finite Difference |
| BEFE | Bio Electric Field Enhancement |
| BEFL | Brillouin Erbium Fiber Laser |