| Acronym | Meaning |
| FCM | Finite-cluster Model (for Calcns. On Electromigration) |
| SMC | Small Magellanic Cloud |
| ECCM | Extended Coupled-cluster Method |
| CPPI | Cross-polarization-polarization-inversion [NMR] |
| HIERD | Heavy Ion Elastic Recoil Detection |
| CPU | Central Processing Unit |
| CRIMS | Chemical Reaction Interface Mass Spectrometry |
| RQ | Respiratory Quotient |
| AVNIR | Advanced Visible And Near-Infrared Radiometer |
| ESAD | Electron-stimulated Associative Desorption |