| Acronym | Meaning |
| PAIR | Patent Application Information Retrieval System |
| IGARSS | International Geoscience And Remote Sensing Symposium |
| SPARHEED | Spot Profile Analysis Reflection High-energy Electron Diffraction |
| (PI)SDCI | (pi)-electron Singly And Doubly Excited CI |
| WENDB | Water Enforcement National Data Base |
| DECODE | Dipolar Echo Decay |
| LCGTO-DF | Linear Combination Of Gaussian Type Orbitals-density Functional |
| SAC-CI | Symmetry-adapted Cluster Configuration Interaction (theory For Wave-function Expansion) |
| EFP | Effective Fragment Potential Method |
| LAST | Lowest Anticipated Service Temperature |