| Acronym | Meaning |
| RPAE | Random Phase Approximation With Exchange |
| SOPHF | Spin And Orbital Polarized Hartree-Fock |
| DLTFS | Deep Level Transient Fourier Spectroscopy |
| SOLSTICE | Solar Stellar Irradiance Comparison Experiment |
| PSCI | Pseudo Configuration Interaction |
| AFCRL | Air Force Cambridge Research Laboratories |
| GEML | Gene Expression Markup Language |
| MOE | Modulus Of Elasticity |
| MCDF-EAL | Multiconfiguration Dirac-Fock-extended Average Level (for Energy Levels And Wave Functions Calcn. For Atoms) |
| ADST | Average Daily Soil Temperature |