| Acronym | Meaning |
| PUCHF | Perturbed Uncoupled Hartree-Fock |
| LAO | London Atomic Orbital |
| OPDIN | Ocean Pollution Data And Information Network |
| PPFD | Photosynthetic Photon Flux D. |
| SAGE | Serial Analysis Of Gene Expression |
| EPSRC | (United Kingdom) Engineering And Phys. Sciences Research Council |
| JICST | Japanese Information Center Of Science And Technology |
| GLOBE | Global Learning And Observations To Benefit The Environment |
| COMAH | Control Of Major Accident Hazards |
| ASCII | American Standard Code For Information Interchange |