| Acronym | Meaning |
| CIBS | Corrections To An Incomplete Basis Set (a Perturbation Theory) |
| CCO | Coupled-channel-optical (potential |
| TWC | Three-Way Catalyst(s) |
| CAPTEX | Cross-Appalachian Tracer Experiment |
| SCR | Solar Cosmic Rays (related To Spacecraft And Space Travel) |
| GGWD | Generalized Gaussian Wave-packet |
| ICPEMC | International Commission On Protection Against Environmental Mutagens And Carcinogens |
| BEM | Boundary Element Method |
| BATS | Biosphere-Atmosphere Transfer Scheme |
| CCAP | Climate Change Action Plan |