| Acronym | Meaning |
| AHA | American Heart Association |
| PCCS | Phase-corrected Coupled-states (approxn. For Scattering Calcns.) |
| FEBIAD | Forced Electron Beam Induced Arc Discharge |
| PIRU | Public Information Reference Unit |
| TIMI | Thrombolysis In Myocardial Infarction |
| HACCP | Pathogen Reduction And Hazard Analysis Critical Control Point |
| CFS | Cubic Feet Per Second |
| ALAD | Delta-aminolevulinic Acid Dehydratase (lead Poisoning Indicator) |
| HSL | Hazardous Substance List |
| ALS | Acid Labile Subunit |