| Acronym | Meaning |
| IPA | Independent-particle Approximation (in Quantum Calcns. On Solids) |
| AET | Apparent Effects Thresholds |
| TOX | Total Organic Halide |
| ARRP | Acid Rain Research Program |
| FWA | Fluorescent Whitening Agent |
| AQCC | Averaged Quadratic Coupled-cluster |
| VCSEL | Vertical Cavity Surface Emitting Laser |
| RF | Response Factor |
| AWM | Abrasive Waterjet Machining |
| CIRES | Cooperative Institute For Research In Environmental Sciences |