| Acronym | Meaning |
| IMS | Intelligent Manufacturing Systems |
| RRM | Rayleigh-Ritz Method (for Quantum Calculations) |
| ADAS | Acid Deposition Assessment Staff |
| CISS | Constant-initial-state Spectroscopy |
| RAMP | Receptor Activity Modifying Protein |
| BIB | Blocked Impurity Band |
| TIP | Temperature-independent Paramagnetism |
| RPEHMO | Relativistically Parametrized Extended Hueckel MO |
| PAM | Photolabile Attachment Molecules |
| ESAD | Electron-stimulated Associative Desorption |