| Acronym | Meaning |
| PPQ | Parts Per Quadrillion |
| CSIA | Compd.-specific Isotope Anal. |
| CEPA | Correlated Electron Pair Approxn. |
| USW | Ultrasonic Welding |
| ASPG | Antisymmetrized Product Of Separated Geminals Approxn. |
| MMEF | Maximum Mid-expiratory Flow (lung Function) |
| PEMC | Pair-excitation Multiconfiguration (type Of Wave Function) |
| ABHP | American Board Of Health Physics |
| SURE | Sulfate Regional Experiment |
| IDD | Iodine Deficiency Disorder |