| Acronym | Meaning |
| CMR | Colossal Magnetoresistance |
| ALS | Alternating Least Squares |
| HVT | Hypervirial Theory |
| PSPC | Position Sensitive Proportional Counter |
| OEP | Odd-even (alkane/carbon) Predominance (geology) |
| ALABC | Advanced Lead Acid Battery Consortium |
| ESA | Energy Sudden Approxn. (in Calcns. On Reactive Scattering) |
| MSA | Metropolitan Statistical Area |
| SSE | Spinless Salpeter Equation |
| CTB | Computer Technology Branch |