| Acronym | Meaning |
| AIEMP | Ab Initio Embedding Model Potential |
| CBR | Cosmic Background Radiation |
| LPMA | Laser-probe Microanalysis |
| MC-INDO | Mol. Cluster-intermediate Neglect Of Differential Overlap |
| APCE | Air Pollution Control Equipment |
| MACAWS | Multi-center Airborne Coherent Atmospheric Wind Sensor |
| SO-LAPW | Spin-orbit (coupling) Linearized Augmented Plane Wave |
| PIMBE | Plasma-induced Molecular-beam Epitaxy |
| FERC | Federal Energy Regulatory Commission |
| ATA | Anaerobic Toxicity Assay |