| Acronym | Meaning |
| PZEV | Partial Zero Emission Vehicle |
| QMCRG | Quantum Monte-Carlo Renormalization Group (for Quantum Phase Transitions) |
| SRP | Signal Recognition Particle |
| IMHEX | Internally Manifolded Heat Exchanger (molten Carbonate Fuel Cell Design) |
| RVS-SCF | Reduced Variational Space-self-consistent Field (in Quantum Calcns. On Hydrogen Bonding) |
| WCRP | World Climate Research Programme |
| DCS | Distributed Control System |
| MLPCA | Maximum Likelihood Principal Component Analysis |
| CEA | Carcinoembryonic Antigen |
| ACPF | Averaged Coupled Pair Functional |