| Acronym | Meaning |
| HDC | Histidine Decarboxylase |
| ULIRG | Ultraluminous Infrared Galaxy |
| PVDF | Polyvinylidene Difluoride |
| HWSFC | Hazardous Waste Superfund Collection |
| MACS | Magnetic Cell Sorting System |
| FMO | Floating Molecular Orbital |
| HQM | Hemiquantal Mechanics (in Mol. Calcns.) |
| EOIM | Energetic Oxygen Interaction With Materials |
| PRBS | Pseudo-random Binary Sequence |
| CTFA | Cosmetic, Toiletry And Fragrance Association |