| Acronym | Meaning |
| ACTS | Advanced Communications Technologies And Services |
| REELS | Reflection Electron Energy-loss Spectroscopy |
| NPTN | National Pesticide Telecommunications Network |
| MUCA | Molecular Unit Cell Approxn. |
| CETP | Channel Equiv. Of A Theor. Plate |
| CDD | Charge-density Distortion |
| SOAP | Spectrometric Oil Analysis Program |
| ECCLS | European Committee For Clinical Laboratory Standards |
| MCD | Magnetic Circular Dichroism |
| ECS | Energy-corrected Sudden (scaling Theory In Mol. Collisions) |