| Acronym | Meaning |
| PIPPE | Particle-induced Prompt Particle Emission |
| NBRF | National Biomedical Research Foundation |
| HCN | US Historical Climatology Network |
| HGP | Hepatic Glucose Production |
| CCMS | Committee On Challenges Of Modern Society (NATO) |
| IDTIMS | Isotope Diln. Thermal Ionization Mass Spectrometry |
| CMAS | Completely Mixed Activated Sludge |
| PCT | Patent Cooperation Treaty |
| SCFB | Standard Cubic Feet Per Barrel |
| DMBE | Double Many-body Expansion (in Potential Energy Surface Calcn.) |