| Acronym | Meaning |
| ATH | Aluminum Trihydrate |
| OCR | Optical Character Recognition |
| TDCP-HFR | Time-dependent Coupled Perturbed Hartree-Fock-roothan Approach |
| DWTM | Distorted Wave T-matrix (for Electron-atom Scattering) |
| NSLS | National Synchrotron Light Source |
| ANPRM | Advance Notice Of Proposed Rulemaking |
| ICSCF | Internally Consistent Self-consistent Field |
| ADCI | American Die Casting Institute |
| PHE | Potentially Harmful Element |
| SAGA | Soviet American Gas And Aerosol Experiment |