| Acronym | Meaning |
| MEED | Medium-energy Electron Diffraction |
| HEPES | N-2-hydroxyethylpiperazine-N'-2-ethanesulfonic Acid |
| REA | Relaxed Eddy Accumulation |
| GCMC | Grand Canonical Monte Carlo |
| TEY | Total Electron Yield |
| FONSI | Finding Of No Significant Impact |
| FEFA | Fiber-optic Evanescent Field Absorption |
| ICSU | International Council Of Scientific Unions |
| GDEPT | Gene-directed Enzyme Prodrug Therapy |
| HEL | Human Erythroleukemia |