| Acronym | Meaning |
| RNR | Ribonucleotide Reductase |
| MTJ | Magnetic Tunnel Junction |
| TIG | Tungsten Inert Gas (welding) |
| INEL | Idaho National Engineering Lab. |
| ECCES | Environmental Calculations Of Consequences From Energy Systems (model) |
| MICROTAS | Micro-Total Analysis Systems |
| SOMBT | Spin-orbital Many-body Theory |
| ACRE | Automatic Climatological Recording Equipment |
| PBCIMS | Particle Beam Chem. Ionization Mass Spectrometry |
| MLE | Maximum Likelihood Estimate |