| Acronym | Meaning |
| ASM | Autosampler Module |
| ZDDO | Zero Diatomic Differential Overlap |
| COPW | Complete Orthogonalized Plane Wave |
| SAMO | Simulated Ab Initio Molecular Orbital |
| CEM | Continuous Emissions Monitoring |
| ACR | Absolute Cryogenic Radiometer |
| IDIMS | Interactive Digital Image Manipulation System |
| X-SAR | X-Band Synthetic Aperture Radar |
| MIS | Management Information System (OSHA) |
| LDR | Linear Dynamic Range |