| Acronym | Meaning |
| CCMC-T2 | Coupled-cluster Multiconfigurational (double-excitation Method With Cluster Operator Approximated By T2) |
| PRINS | Primed In Situ DNA Synthesis |
| ISO | International Organization For Standardization |
| ATEM | Analytical Transmission Electron Microscopy |
| DHBT | Double Heterojunction Bipolar Transistor |
| CIDNP | Chemically Induced Dynamic Nuclear Polarization |
| RIOS | Reactive Infinite-order Sudden (at.-mol. Reactive Collisions) |
| ISTP | International Solar Terrestrial Physics |
| FEMP | Federal Energy Management Program |
| ELDOR | Electron Double Resonance |