| Acronym | Meaning |
| SOGVB | Spin Optimized Generalized Valence Bond Method |
| IOS-BS | Infinite Order Sudden-breathing Sphere |
| GDAAS | Glow Discharge Atomic Absorption Spectrometry |
| OHCE | One-and-a-half-centered Expansion (method For Calcns. On Charge Transfer In Ion-atom Scattering) |
| SCCWRP | Southern California Coastal Water Research Project |
| RPI | Radius Polydispersity Index |
| OP | Overlap Population |
| UTI | Urinary Tract Infection |
| NRIOSA | Nonreactive Infinite-order Sudden Approxn. |
| NVPA | No-virtual-pair Approxn. |