| Acronym | Meaning |
| APUMPN | Approximately Projected Unrestricted Moeller-Plesset Nth-order |
| ITFA | Iterative Target Factor Analysis |
| NACCHO | National Association Of County And City Health Officials |
| PIRL | Polyimide Release Layer |
| SOLAS | Surface Ocean-lower Atmosphere Study |
| DTMR | Diffusion Tensor Magnetic Resonance |
| QXRD | Quantitative X-ray Diffraction |
| AUBF | Anaerobic Upflow Biofilter |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| BTCC | Bladder Transitional Cell Carcinomapar |