| Acronym | Meaning |
| PFE | Pressurized Fluid Extraction |
| LDPO | Linearly Driven Parametric Oscillator (model In Energy Transfer Calcns. In Mol. Collisions) |
| CPSS | Chemist's Personal Software Series |
| FORS | Fully Optimized Reaction Space |
| UMP4SDTQ | Unrestricted Moeller-Plesset 4th-order (perturbation Theory With) Single |
| CA | Chromosomal Abberation |
| GFEMO | Generalized Free Electron Molecular Orbital |
| PAB | Passenger-side Air Bag |
| SXES | Soft X-ray Emission Spectroscopy |
| ICCVAM | US Interagency Coordination Committee On The Validation Of Alternative Methods |