| Acronym | Meaning |
| ECPA | European Crop Protection Association |
| PZEV | Partial Zero Emission Vehicle |
| CCSDTQ | CCSDT (with) Quadruple (excitations) |
| CHR | Conventional Hot Rolling |
| RMRCI | Relativistic MR-CI |
| SEPAR | Surfaces Enhanced For Photolabile Attachment And Release |
| PSM | Process Safety Management |
| QRAR | Quantitative Retention-activity Relationship |
| EFTEM | Energy-filtering Transmission Electron Microscopy |
| SPM | Scanning Proton Microprobe |