| Acronym | Meaning |
| EIE | Equilibrium Isotope Effect |
| VC | Vapor Compression |
| PAB | Particle Associated Bacteria |
| GECSC | Generalized Exponential Cosine Screened Coulomb (potential) |
| PFA | Principal Factor Analysis |
| LTH | Linearized Time-dependent Hartree (approxn. |
| CCPA | Canadian Chemical Producers Association |
| LWSP | Liquid Waste Solidification Project |
| BRC | Basic Regulatory Control |
| OCCSD | Open-shell Coupled-cluster (with) Single (and) Double (excitations) |