| Acronym | Meaning |
| GRI | Gas Research Institute |
| ECTDMS | Electrochemical Thermal Desorption Mass Spectroscopy |
| CWT | Centralized Waste Treatment |
| LNDO | Local Neglect Of Differential Overlap |
| RSK | Rajagopal-Singhal-Kimball (local-spin-d. Potential For Electronic Structure Calcns.) |
| NLXC | Nonlocal Exchange Correlation (potential) |
| REA | Reactive Arthritis |
| CASH | CaO-Al2O3-SiO2-H2O System |
| PAP | Prostatic Acid Phosphatase |
| BGA | Ball Grid Array [electronic Packaging] |