| Acronym | Meaning |
| CORAL | Control Retrofit Assessment Library [EPRI Software] |
| OSC | Oxygen Storage Capacity |
| LCGTO-LDF | Linear Combination Of Gaussian-type Orbitals-local Density Functional |
| QLGM | Quantum Lattice Gas Model (in Helium Superfluid Transition Temperature In Zeolite Pores) |
| RCCSD | (partially) Restricted CCSD |
| PSXD | Position Sensitive X-ray Detector |
| SBH | Schottky-barrier Height |
| TRIPS | Trade-Related Aspects Of Intellectual Property Rights |
| HFBR | High Flux Beam Reactor |
| RGB | Red Giant Branch (star) |