| Acronym | Meaning |
| TBU | Tertiary Building Unit |
| UKB | Unrestricted Kinetic Balance (in Calcns. Of Wave Functions And Energies) |
| ARPA | Advanced Research Projects Agency |
| GIXA | Glancing-incidence X-ray Analysis |
| PCS | Photon Correlation Spectroscopy |
| IGCP | International Geological Correlation Program |
| ALICE | A Large Ion Collider Experiment |
| MIBD | Micro-interferometric Backscatter Detection |
| ESIC | Earth Science Information Center |
| IGCC | Integrated Gasification Combined Cycles (electric Power Generation Technology) |