| Acronym | Meaning |
| WPAC | Working Party On Analytical Chemistry |
| ITDHO | Improved Time-dependent Harmonic Oscillator |
| LCGO | Linear Combination Of Gaussian Orbitals |
| VMT | Vehicle Miles Traveled |
| NTRS | National Technology Roadmap For Semiconductors |
| QDIP | Quantum Dot Infrared Photodetector |
| OSCC | Oral Squamous Cell Carcinoma |
| ERCAM | Emission Reduction And Cost Analysis Model |
| OPM | Open Path Monitors (air Pollution Sensors) |
| IP | Impact Parameter Approximation |