| Acronym | Meaning |
| IAB | Information Access Branch |
| FTU | Formazine Turbidity Unit |
| PPAR | Peroxisome Proliferator-activated Receptor |
| NCAT | National Catalog Database (accessible Through OLS) |
| ERFEN | Estudio Regional Del Fenomeno El Nino |
| SGOT | Serum Glutamic-oxaloacetic Transaminase |
| BCR | Bureau Communitaire De Reference (of The CEE = Commission Of European Communities |
| GWP | Gaussian Wave Packet |
| SCR | Solar Cosmic Rays (related To Spacecraft And Space Travel) |
| CCSD | Coupled Cluster With Single And Double Excitation |