| Acronym | Meaning |
| EBIT | Electron Beam Ion Trap |
| CHMO | Constrained Hartree-Fock Orbitals |
| STO | Slater-type Orbital |
| MMA | Manual Metal Arc Welding |
| PCP | Photoelectric Charging Of Particles |
| CCMSD | Computational Center For Molecular Structure And Design |
| CNDO/2D | Complete Neglect Of Differential Overlap With Deorthogonalization |
| PAUR | Photochemical Activity And Solar Ultraviolet Radiation [project] |
| SMIDG | Submicro Inverse-detection Gradient |
| SAGE II | Stratospheric Aerosol And Gas Expt. II |