| Acronym | Meaning |
| PHF-OCE | Perturbative Hartree-Fock One-center Expansion |
| ANNNI | Axial Next-nearest-neighbor Ising (model Of Superstructure) |
| TARIS | Thermal Atomization Resonance Ionization Spectrometry |
| DMICS | Design Methods For Integrated Control Systems [propulsion] |
| EPCRA | Emergency Planning And Community Response Act |
| SODART | Soviet Danish Roentgen Telescope |
| MCR | Minimum Creep Rate |
| QBM | Quantal Brownian Motion (model) |
| FOCI | First-order Configuration Interaction |
| PIT | Phase Inversion Temperature |