| Acronym | Meaning |
| HTP | Helical Twisting Power |
| ATRS | Attenuated Total Reflection Spectroscopy |
| MIDI-N | Split-type Contracted GTO Basis Set (n = 1 |
| AESA | Atmospheric Effects Of Stratospheric Aircraft |
| DVR | Discrete Variable Representation (in Wave Function Calcn.) |
| IMWIR | Interim Mixed Waste Inventory Report |
| LQG | Linear Quadratic Gaussian |
| IRM | Information Resources Management |
| SLEAF | Scanning Laser Environmental Airborne Fluorosensor |
| ICC | Intrahepatic Cholangiocarcinoma |