| Acronym | Meaning |
| BAW | Bond-order Alternation Wave (mol. Orbital) |
| HFFR | Halogen-free Flame Retardant [thermoplastics] |
| RPO | Resonant Periodic Orbit (on Potential Energy Surface In At. Or Mol. Scattering) |
| SCI | Science Citation Index |
| HSW | Health And Safety At Work Act 1974 |
| ALA | Association For Laboratory Automation |
| SAC | Self-Aligned Contact |
| CIBE | Continuous Interfacial Bilayer Electrode |
| ABR | Advanced Breeder Reactor |
| EBA | Expanded Bed Adsorption |