| Acronym | Meaning |
| GPHS | General Purpose Heat Source |
| BTCA | Best Technology Currently Available |
| HPPM | Hole-particle Potential Model (in Mol. Excited States Calcns.) |
| HPMC | Human Peritoneal Mesothelial Cells |
| BOCLE | Ball-on Cylinder Lubricity Evaluator |
| OTLC | Open Tubular Liquid Chromatography |
| SAWD | Solid Amine Water Desorbed |
| ISA | Instrument Society Of America |
| STAIRS | Storage And Information Retrieval System |
| VOA | Variable Optical Attenuator |