| Acronym | Meaning |
| CAER | Community Awareness And Emergency Response |
| PBSC | Peripheral Blood Stem Cell |
| DDF | Depth Distribution Function |
| ADU | Analog-to-digital Unit |
| HMM | Heavy Meromyosin |
| OC | Office Of The Comptroller |
| QBO | Quasi-biennial Oscillation (atm.) |
| ESSP | Earth Systems Science Pathfinder |
| CGMP | Cyclic Guanosine Monophosphate |
| BOA | Bidirectional Orbital Approximation (in Valence Bond Theory) |