| Acronym | Meaning |
| ECPSSR | Energy-loss Coulomb-repulsion Perturbed-stationary-state Relativistic Theory |
| TDKS | Time-dependent Kohn-Sham (d.-functional Operator Equation) |
| LASCS | Light-activated Silicon Controlled Switch |
| CDM | Clean Development Mechanism |
| AESOPS | Antarctic Environment Southern Ocean Process Study |
| LMFBR | Liquid-Metal Fast Breeder Reactor |
| MARB | Methanotropic Air-tight Rotating Bioreactor |
| PALMS | Particle Analysis By Laser Mass Spectrometry |
| MPMMG | Marine Pollution Monitoring Management Group (UK) |
| IWSA | International Water Supply Association |