| Acronym | Meaning |
| PCET | Proton-coupled Electron Transfer |
| SNS | Separation Network Synthesis (chemical Engineering Design) |
| AUSTRALIS | AMS For Ultra Sensitive Trace Element And Isotope Studies |
| PCL | Phase Conjugate Laser |
| HOCO | Highest Occupied Crystal Orbital |
| NDR | Neg. Differential Resistance |
| CEGB | Central Electricity Generating Board |
| CNDO SP | Complete Neglect Of Differential Overlap Spin Polarization |
| MLT | Magnetic Local Time |
| NACA | National Agricultural Chemicals Association |