| Acronym | Meaning |
| ZINDO | Zerner's Intermediate Neglect Of Differential Overlap |
| PASTM | Photon Assisted Scanning Tunnel Microscopy |
| LORG | Localized Orbital-local Origin |
| EEA | European Environment Agency |
| HFE | Hot-feed Extrusion |
| CTG | Control Technique Guidelines |
| CC | Closed Cup (Flash Point Test Method) |
| CRL | Certified Reporting Limit |
| DRFM | Digital Radio-frequency Memory |
| RME | Reasonably Maximally Exposed |