| Acronym | Meaning |
| PMOS | P-channel Metal Oxide Semiconductor |
| REPELS | Reemitted Positron Energy Loss Spectroscopy |
| CRAB | Clocked Recombination Antiblooming |
| ASE | Accelerated Solvent Extraction |
| VCA | Virtual Crystal Approximation |
| J(Z)CCS | J(z) Conserving Centrifugal Sudden Approximation (in Molecular Collisions |
| NSF | Near-surface Fractionated (mantle) |
| CRS | Controlled Release Society |
| CWA | Clean Water Act |
| TDCHF | Time-dependent Coupled Hartree-Fock |