| Acronym | Meaning |
| PCILOCC | PCILO For Crystal Calculations |
| TMIC | Toxic Materials Information Center |
| HCN | US Historical Climatology Network |
| CBP | Combustion By-Product (from Incineration) |
| PICA | Picosecond Imaging Circuit Analysis |
| CECE | Combined Electrolysis And Chemical Exchange |
| COSTR | Collaborative Solar-Terrestrial Research |
| DMOS | Diffused Metal-oxide Semiconductor |
| TTI | Time-temperature Integrator |
| SMC | Schwinger Multichannel (for Electron-mol. Scattering) |